______ is reported that many young peopl_爱下问搜题

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问题选择题

______ is reported that many young people go to big cities to earn money.

A．This

B．That

C．It

D．As

答案

答案：C

填空题

若函数f(x)＝4x²－mx＋5在[－2，＋∞)上递增，在(－∞，－2]上递减，则f(1)＝________.

单项选择题 A1/A2型题

喘鸣音属于（）

A.胸语音

B.湿啰音

C.干啰音

D.羊鸣音

E.爆裂音