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【单选题】
具有以下化学结构的药物属于( )
A.
青霉素类
B.
甾类抗炎药
C.
解热镇痛药
D.
头孢菌素类
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【简答题】A.came out B.come C.come up D.come out
【单选题】( )在《经理人员的职能》中提出,企业或组织是一个协作系统,这个系统的生存取决于三点:协作的效果、协作的效率、协作的目标。
A.
巴纳德
B.
赫茨伯格
C.
沙因
D.
亚当斯
【单选题】【C2】______
A.
come across
B.
come at
C.
come to
D.
come out
【单选题】. Short skirts ______a few years ago, but they have come back again.
A.
went out
B.
came out
C.
gave out
D.
let out
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A.
一样
B.
C.
D.
相等
【单选题】I hope your dream will _____.
A.
come true                  
B.
come out            
C.
come in
【单选题】下列碳正离子中最稳定的是
A.
CH 3 CH 2 C + HCH 3
B.
CH 3 CH 2 CH 2 C + H 2
C.
CH 2 =CHC + HCH 3
D.
CH 3 CH=C + CH 3
【单选题】Don’t stand there in the doorway. Please ________ come in ________ go out.
A.
either…or
B.
neither…nor
C.
so…that
D.
and…or
【单选题】You can go out, ______ you promise to come back before 11 o'clock.
A.
as far as
B.
as soon as
C.
so far as
D.
so long as
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