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【简答题】
药物临床试验机构以健康人为麻醉药品和第一类精神药品临床试验的受试对象的（ ）
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皮皮学刷刷变学霸
举一反三
【单选题】Ram asked me where I worked. His original words were
A.
"Do you work there?"
B.
"Where do I work?"
C.
"Where do you work?"
【简答题】I (original) intend to catch the earliest train, but I got up late.
【单选题】I always have a difficult time choosing original birthday presents. My imagination never seems to get beyond ties, handkerchiefs, or pairs of socks. But, strangely enough, it did not take me long to d...
A.
Ties.
B.
Books.
C.
Handkerchiefs.
D.
Pairs of socks.
【简答题】I want to buy a friend an original present.
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