题目内容

一旦变量被定义为全局变量后,在程序任何地方都可以访问,不可以修改。

A. 对
B. 错

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No other drugs are as good as this one; it must have been based on a(n) ________ formula (配方).

A. enormous
B. stimulating
C. unique
D. overwhelming

Mothers tend to be too ________ toward their children. They should let them see more of the world.

A. hopeful
B. protective
C. modest
D. encouraging

Showing some sense of humor can be a(n) ________ way to deal with some stressful situations.

A. genuine
B. available
C. effective
D. favorite

He suggested transporting the supplies by air. But it is absolutely ________, for it will cost too much.

A. unusual
B. uncertain
C. impractical
D. impressive

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