—We're going to have an exam next Friday

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问题选择题

—We're going to have an exam next Friday.

—But we're looking forward _____ next Saturday.

A. to going on a trip

B. to go on a trip

C. going on a trip

D. go on a trip

答案

答案：A

选择题

“牢骚太盛防断肠，风物长宜放眼量。”毛 * * 的这一诗句对我们的启示主要是（）

A．看问题要分清“主流”和“支流”

B．要用变化发展的观点看问题

C．要掌握系统优化的方法

D．做好量变准备促进事物质变

单项选择题

箱子里有大小相同的3种颜色玻璃珠各若干颗，每次从中摸出3颗为一组，问至少要摸出多少组，才能保证至少有2组玻璃珠的颜色组合是一样的?

A.11

B.15

C.18

D.21