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【单选题】
垄断竞争市场上长期均衡的条件是( )A.
MR=MC
B.
MR=MC，AR=AC
C.
AR=AC
D.
MR=AC
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举一反三
【单选题】In world terms, how much rain does London get in a year?
A.
a little
B.
a moderate amount
C.
a lot
【单选题】-- _______ do you ________ the weather these days? -- It’s terrible, too much rain.
A.
How; think
B.
What; think
C.
How; think of
D.
What; think of
【单选题】病人，男性，54岁，患肺结核住院三周后出院，继续规律化疗，近日自觉双手麻木伴蚁行感。请问易引起周围神经炎的抗结核药物为
A.
异烟肼
B.
利福平
C.
链霉素
D.
对氨基水杨酸
E.
乙胺丁醇
【单选题】There will be ______ tomorrow than today. [ ]
A.
much more rainy
B.
much rainier
C.
much more rain
D.
much rain
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