This is the very reason ______ he gave f

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问题选择题

This is the very reason ______ he gave for his coming late to the meeting. [ ]

A. that

B. which

C. as

D. why

答案

答案：A

单项选择题

下列关于Applet生命周期的说法，正确的是

A) void init()在Applet下载前调用
B) void start()只在初始化之后调用
C) void stop()在关闭浏览器时调用
D) stop()总在void destroy()之前被调用

单项选择题

测尘时，粉尘采样器的采样必须（）。

A.顺风流

B.迎风流

C.向左帮

D.向右帮