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【单选题】
促进南北文风的交流,成为南北朝文学的集大成者的是A.
B.
C.
D.
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举一反三
【单选题】听力原文：I can fill out this form. for you. (A) That would save me time. (B) Fill it up, please. (C) Shall we leave now? (24)
A.
B.
【单选题】—Jonny, you can’t until 11 pm, or you can’t get up on time. —I know, but I haven’t finished my homework.
A.
put up
B.
look up
C.
stay up
D.
stand up
【单选题】Would you slow down a bit, please? I can't______you.
A.
keep up with
B.
put up with
C.
make up to
D.
hold on to
【简答题】[klaud] c__ __ __d
【简答题】Welcome to London's River Marathon and our online Entry section．You can fill in an Entry Form and the closing date for Race entries is 6th September． Here you can learn something about our service suc...
【单选题】If you can't read the new words, you may _____ in the dictionary. [ ]
A.
look it up
B.
look up it
C.
look them up
D.
look up them
【多选题】边际效用呈递减规律,但也有边际效用不递减的特殊情况,比如
A.
喝酒成性的酒徒在饮酒时的边际效用
B.
一个口渴的人在饮水时水的边际效用
C.
一个集邮爱好者收集邮票时邮票的边际效用
D.
人们吃饭时每碗饭的边际效用
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