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# When testing the inactivated poliovirus vaccine that was licensed for

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Joined: 22 Feb 2018
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09 Aug 2018, 07:05
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77% (01:39) correct 23% (01:46) wrong based on 91 sessions

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When testing the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955, combined in it by the vaccine's creator, Jonas Salk, were three wild, virulent reference strains.

(A) When testing the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955, combined in it by the vaccine's creator, Jonas Salk, were three wild, virulent reference strains.

(B) Combining three wild, virulent reference strains, a test of the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955 that Jonas Salk created.

(C) When the inactivated poliovirus vaccine created by Jonas Salk was licensed for a mass vaccination campaign in the United States in 1955, three wild, virulent reference strains had been combined in it.

(D) Three wild, virulent reference strains, combined in Jonas Salk's test of the inactivated poliovirus vaccine in 1955, that was licensed for a mass vaccination campaign.

(E) When Jonas Salk tested the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955, he combined in it three wild, virulent reference strains.

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Re: When testing the inactivated poliovirus vaccine that was licensed for  [#permalink]

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17 Aug 2018, 23:00
When testing the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955, combined in it by the vaccine's creator, Jonas Salk, were three wild, virulent reference strains.

(A) When testing the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955, combined in it by the vaccine's creator, Jonas Salk, were three wild, virulent reference strains. - who is testing the vaccine? The construction is flawed

(B) Combining three wild, virulent reference strains, a test of the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955 that Jonas Salk created. - who has combined these strains?

(C) When the inactivated poliovirus vaccine created by Jonas Salk was licensed for a mass vaccination campaign in the United States in 1955, three wild, virulent reference strains had been combined in it. - incorrect usage of had been

(D) Three wild, virulent reference strains, combined in Jonas Salk's test of the inactivated poliovirus vaccine in 1955, that was licensed for a mass vaccination campaign. The sentence just does not seem to have a proper subject predicate relationship.

(E) When Jonas Salk tested the inactivated poliovirus vaccine that was licensed for a mass vaccination campaign in the United States in 1955, he combined in it three wild, virulent reference strains. - Correct
Re: When testing the inactivated poliovirus vaccine that was licensed for   [#permalink] 17 Aug 2018, 23:00
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