题目内容

Poor Laura! I feel so sorry for her. When she fell, she hurt her arm and, ________, broke her glasses.

A. in advance
B. in addition
C. over time
D. on the other hand

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Don't worry too much, Jane. Your son ________ home already. Let's go back and check it out.

A. returned
B. will return
C. has returned
D. may have returned

Directions:For each of the following sentences there are four choices marked A, B, C and D. Choose the best one to complete each sentence.1.If you don't ________ cooking today, we can go out to eat at the new restaurant.

A. would like
B. go on with
C. feel like
D. figure out

关于垄断竞争模型的假设说法正确的是

A. 市场对其行业产品的需求越大和竞争对手的价格越高,该厂商的产品销售量越大
B. 若行业竞争者增多,该厂商的价格降低,则销量减少
C. 若行业竞争者减少,该厂商的价格升高,则销量减少
D. 市场对其行业产品的需求越大和竞争对手的价格越高,该厂商的产品销售量越小

PP曲线代表

A. 在寡头市场中,厂商数量越多,竞争越激烈,价格越高
B. 在垄断竞争市场中,厂商数量越多,竞争越激烈,价格越低
C. 在完全竞争市场中,厂商数量越多,竞争越激烈,价格越低
D. 在完全垄断市场中,厂商数量越多,竞争越激烈,价格越低

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