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Researchers agreed that the study of new treatments for heart attack patients was extremely important but more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than the balloon procedure by itself. A. more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than B. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is C. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than D. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than E. that more research was needed for determining that balloon angioplasty preceded by ultrasound is or is not any better for heart attack patients than is
Please provide some explaination. Thanks
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Hi there,
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A. more research was needed to determine that balloon angioplasty preceded with ultrasound was or was not any better for heart attack patients than that needed to introduce clause
B. more research was needed for determining whether or not balloon angioplasty preceded by ultrasound is any better for heart attack patients than is that needed to introduce clause
C. that more research was needed to determine whether balloon angioplasty preceded by ultrasound is any better for heart attack patients than
D. that more research was needed to determine that balloon angioplasty preceded with ultrasound was any better for heart attack patients than not proper comparisson structure; ultrasound was should be is
E. that more research was needed for determining that balloon angioplasty preceded by ultrasound is or is not any better for heart attack patients than is needed for determining is not correct (use to after need); is or is not is not correct (use wether); than is towards the end is not paralell
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