Why did the boss send Mr. Black to China on business
A. [A] Mr. Black had never been to China before.
B. Mr. Black was an able and hardworking man.
C. Mr. Black could buy something interesting for Tony.
查看答案
People go there for meals.
每个applet必须定义为 ______ 的子类；
Java类库提供的Applet类是所有 ______ 程序的根。
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