题目内容

Henry ______be at home because he telephoned me from Paris just a moment ago.

A. needn't
B. isn't able to
C. can't

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The temperature in ______is the hottest of all three.( )

Austria
B. Thailand
C. Hawaii

在Photoshop中使用圆形选取工具时,需配合______键才能绘制出正圆。

A. SHIFT
B. CTRL
C. TAB
D. Photoshop不能画正圆

单个微机之间“病毒传染”媒介是______。

A. 键盘输入
B. 硬盘
C. 移动介质
D. 电磁波

Great changes______ place since he left here.

A. have been taken
B. have taken
C. were taken

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