问题
选择题
Generally speaking, _____according to the directions, the drug has no side-effect. [ ]
A when taking
B when taken
C when to take
D when to be taken
答案
答案：B
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Generally speaking, _____according to the directions, the drug has no side-effect. [ ]
A when taking
B when taken
C when to take
D when to be taken
答案：B