谁建立了AD-AS模型？（） A.凯恩斯 B.马歇尔 C.萨缪尔森 D.希克斯

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问题单项选择题

谁建立了AD-AS模型？（）

A.凯恩斯

B.马歇尔

C.萨缪尔森

D.希克斯

答案

参考答案：C

选择题

—Do you think John will help me move the piano?

—You'd better not ask him. He _______ a composition. [ ]

A. write

B. writes

C. is writing

D. wrote

单项选择题

Passage Two

What is considered to be the operating standard for global communication

A．The Internet.

B．The English language.

C．The networked computer.

D．The electronic media.