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11 Feb 2016, 06:21
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Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions just as supernovae are, yet being so rare and distant that it is still a matter of debate among the radio astronomical community whether the GRB afterglow can penetrate earth’s atmosphere.
A. Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions just as supernovae are, yet being
B. Like supernovae, Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions, but they are
C. Although like supernovae Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, yet
D. As supernovae, Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, but they are
E. Gamma Ray Bursts (GRBs) are results of cosmic explosions like supernovae, some of them high energy radiations result from cosmic explosions but
A. Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions just as supernovae are, yet being
B. Like supernovae, Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions, but they are
C. Although like supernovae Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, yet
D. As supernovae, Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, but they are
E. Gamma Ray Bursts (GRBs) are results of cosmic explosions like supernovae, some of them high energy radiations result from cosmic explosions but
29 Jun 2016, 13:27
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Avigano
There is a special category of modifiers known as "subgroup modifiers". The correct usages of such modifiers are as follows (examples from Manhattan SC guide):
Right: This model explains all known subatomic particles, SOME OF WHICH WERE only recently discovered.
Right: This model explains all known subatomic particles, SOME OF THEM only recently discovered.
Right: This model explains all known subatomic particles, SOME only recently discovered.
Wrong: This model explains all known subatomic particles, OF WHICH SOME WERE only recently discovered.
Wrong: This model explains all known subatomic particles, SOME OF THEM WHICH WERE only recently discovered.
Wrong: This model explains all known subatomic particles, SOME OF WHICH only recently discovered.
Please refer to the second correct example above. The pronoun "them" MUST refer to the noun the modifier touches (particles).
The usage in the subject question is similar to the second correct example above. The pronoun "them" correctly refers to the noun (Gamma Ray Bursts) the sub-group modifier (some of them high energy radiations) touches.
General Discussion
11 Feb 2016, 06:21
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Official Solution:
Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions just as supernovae are, yet being so rare and distant that it is still a matter of debate among the radio astronomical community whether the GRB afterglow can penetrate earth’s atmosphere.
A. Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions just as supernovae are, yet being
B. Like supernovae, Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions, but they are
C. Although like supernovae Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, yet
D. As supernovae, Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, but they are
E. Gamma Ray Bursts (GRBs) are results of cosmic explosions like supernovae, some of them high energy radiations result from cosmic explosions but
(A) yet is a coordinating conjunction and must be followed by an independent clause such as they are are and from distant corners of the universe. But in this case it is followed by the participial phrase being so rare and from distant corners of the universe. Therefore, answer choice A is incorrect.
(B) CORRECT. like is used to compare two nouns supernovae and GRBs. Although it may seem that the pronoun they is ambiguous and could refer to either the supernovae or the GRBs, the reference is actually clear because the subject of this sentence is GRBs and the whole sentence is about GRBs. Supernovae are just a kind of throw-away comparison here. Choice B is correct.
(C) The entire section although…. radiations is a dependent clause and there is no active verb in the sentence. Hence option C is incorrect.
(D) D is incorrect because it uses as to compare two nouns: supernovae and GRBs.
(E) is incorrect because the clause some of them high energy radiations refers to supernovae instead of GRBs, changing the meaning of the sentence.
Answer: B
Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions just as supernovae are, yet being so rare and distant that it is still a matter of debate among the radio astronomical community whether the GRB afterglow can penetrate earth’s atmosphere.
A. Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions just as supernovae are, yet being
B. Like supernovae, Gamma Ray Bursts (GRBs), some of them high energy radiations, are results of cosmic explosions, but they are
C. Although like supernovae Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, yet
D. As supernovae, Gamma Ray Bursts (GRBs) are results of cosmic explosions, some of them high energy radiations, but they are
E. Gamma Ray Bursts (GRBs) are results of cosmic explosions like supernovae, some of them high energy radiations result from cosmic explosions but
(A) yet is a coordinating conjunction and must be followed by an independent clause such as they are are and from distant corners of the universe. But in this case it is followed by the participial phrase being so rare and from distant corners of the universe. Therefore, answer choice A is incorrect.
(B) CORRECT. like is used to compare two nouns supernovae and GRBs. Although it may seem that the pronoun they is ambiguous and could refer to either the supernovae or the GRBs, the reference is actually clear because the subject of this sentence is GRBs and the whole sentence is about GRBs. Supernovae are just a kind of throw-away comparison here. Choice B is correct.
(C) The entire section although…. radiations is a dependent clause and there is no active verb in the sentence. Hence option C is incorrect.
(D) D is incorrect because it uses as to compare two nouns: supernovae and GRBs.
(E) is incorrect because the clause some of them high energy radiations refers to supernovae instead of GRBs, changing the meaning of the sentence.
Answer: B
