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搜题
【单选题】
按照 4 舍、 6 入、 5 凑偶 的原则和 科学计数法 ,将 下列数值保留 3 位有效数字 1.455 : 1.445000 : 399510 :
A.
1.46 , 1.44 , 4.00 × 10 5
B.
1.45 , 1.44 , 4.00 × 10 5
C.
1.46 , 1.440 , 4.00 × 10 5
D.
1.46 , 1.440 , 4.0 × 10 5
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举一反三
【单选题】The party, ______ I was the guest of honor, was extremely enjoyable.
A.
by which
B.
for which
C.
to which
D.
at which
【单选题】复制当前窗口图像,可以在按住()的时候按Print screen SysRq键。
A.
Ctrl
B.
Shift
C.
ALT
D.
Esc
【判断题】The seat of the guest of honor should be next to the wall.
A.
正确
B.
错误
【单选题】Where does the guest of honor sit?
A.
on the right of the host
B.
on the left of the host
【单选题】Where should the guest of honor be seated?
A.
To the right of the host.
B.
To the left of the host.
C.
Wherever he/she wants.
D.
At the place where the dishes are served.
【判断题】Windows 7中,如果要将当前窗口的信息以位图形式复制到剪贴板中,可以按Alt+ Print Screen键。
A.
正确
B.
错误
【单选题】按( )键和Print Screen键可以将当前活动窗口的界面复制到剪贴板
A.
〈Alt〉
B.
〈Ctrl〉
C.
〈Ctrl〉+ 〈Ctrl〉
D.
〈Shift〉
【单选题】下图中惰轮的作用是使从动齿轮
A.
转动方向与主动齿轮相同
B.
保持静止
C.
转动方向与主动齿轮相反
D.
转动加快
【单选题】Where should the guest of honor be seated?
A.
At the place where the dishes are served.
B.
Wherever he/she wants.
C.
To the left of the host.
D.
To the right of the host.
【简答题】按___键和Print Screen键可以将当前活动窗口的界面复制到剪贴板。
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