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18 to 18 are based on this passage
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Question 18
The author approves of all of Lind’s experimental methodology EXCEPT his
A. division of the sick seamen into six separate but corresponding groups
B. criteria for the selection of possible cures to test
C. selection of subjects all suffering from the same ailment
D. choice of remedies then in favor with naval surgeons
E. provision of identical dietary conditions for each group
我的答案： 无