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【单选题】
药物产生作用的快慢取决于( )A.
药物的吸收速度
B.
药物的排泄速度
C.
药物的转运方式
D.
药物的光学异构体
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皮皮学刷刷变学霸
举一反三
【单选题】Tom ________ the radio when I came in.
A.
listened to
B.
was listening to
C.
listened
D.
was listening
【单选题】In a pre-listening activity， students need to learn to cope with some ambiguity in listeningand realize that they can still learn even when they do not understand every single word. The aimof this act...
A.
listening fir specific information
B.
listening for gist
C.
listening for structure
D.
listening for vocabulary
【单选题】Li Lei wants to be a singer.He music. [ ]
A.
enjoy listening
B.
enjoys to listen to
C.
enjoys listening to
D.
enjoy listening to
【简答题】根据观测误差对观测结果影响的性质,可将误差分为 和 。
【简答题】根据观测误差对观测结果影响的性质,可将误差分为 、 和 三种。
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