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【单选题】
取代基位于甾环环平面上方，用实线“—”相连，为A.
α构型
B.
β构型
C.
γ构型
D.
δ构型
E.
ε构型
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【简答题】利用植物的种子繁殖后代是属于有性生殖．______．
【简答题】利用植物的种子繁殖后代是属于有性生殖。
【单选题】It's (high) time they (begin) to take you seriously (and) they know (it).
A.
high
B.
begin
C.
and
D.
it
【单选题】It was not the first time he ______ . I think it’s high time we ______ to take him seriously.
A.
take us in... begin
B.
had taken us in... began
C.
has taken us in... began
D.
took us in... begin
【简答题】65～66 第 65 题 治疗气虚自汗，阴虚盗汗的药物是
【简答题】“You are very selfish. It’s high time you ______?“You are very selfish. It’s high time you ________ that you are not the most important person in the world,” Edgar said to his boss angrily. A) realize...
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