题目内容

在完全垄断市场上,厂商所售的商品没有任何相近的替代品。正确错误

A. 对
B. 错

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市场结构是指市场的垄断与竞争程度。正确错误

A. 对
B. 错

Myparentsare______busywiththeirwork.

A. both
B. to
C. either
D. neither

Theyalwaysaskmetostudyhardandnotto______timeonline.

A. have
B. spend
C. waste
D. use

Peoplesay______isimportantforahappyfamily.

A. talk
B. communication
C. speech
D. words

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