题目内容

PHP中空值表示没有为该变量设置任何值,下面对空值描述不正确的()

A. null和NULL效果一样
B. 空值就是没有赋任何值
C. 空值就是被赋值为null
D. 空值就是0

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下面定义的数据类型中是字符串型数据的是()。

A. 100
B. true
C.
D. “100”

现汇市场的汇率也称为()。

A. 即期汇率
B. 远期汇率
C. 名义汇率
D. 实际汇率

紧缩性的货币政策会使该国汇率(),扩张性的货币政策会使该国汇率()。

A. 上升,上升
B. 下降,下降
C. 上升,下降
D. 下降,上升

Imagine there is no_________It's easy if you_________No hell below usAbove us only_________Imagine all the peopleLiving for today...Imagine there is no___________It isn't __________ hard to doNothing to kill or ___________No religion tooImagine all the peopleLiving life in ___________You may say I am a dreamerBut I am not the only oneI hope someday you will join usAnd the world will be as oneImagine no possessionsI ________ if you canNo need for greed or __________A brotherhood of manImagine all the people___________ all the worldYou may say I am a dreamerBut I am not the only oneI hope someday you will join usAnd the world will live as one

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