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【单选题】
礼貌是表示尊重的言行规范,礼节是90、
A.
共同遵守的社会公德
B.
尊重的形式要求
C.
岗位责任制中的要求
D.
服务的标准
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举一反三
【单选题】Believe it or not, the number of indifferent (漠不关心的) passers-by ______ eighteen, and a large number of people ______ discussing the incident on the net. [     ]
A.
add up to; is
B.
add to; is
C.
adds up to; are
D.
adds to; are
【单选题】逆变状态时()。
A.
0°<α<45°
B.
0°<α<90°
C.
90°<α<180°
D.
60°<α<120°
【单选题】Excel 退出“全屏显示”按( )键。
A.
CapsLK
B.
Delete
C.
Ctrl
D.
Esc
【简答题】逆变状态时()
【单选题】逆变状态时( )。
A.
B.
C.
90°
D.
60°
【单选题】变流器工作于有源逆变状态时
A.
α<90 度
B.
α=90 度
C.
α>90 度
D.
α=60 度
【单选题】John Smith, a successful businessman, has a ______ car.
A.
large German white
B.
large white German
C.
white large German
D.
German large white
【简答题】The growth of motorcycle use has been especially large in ______.
【简答题】The professor has a large (collect) ______ of books.
【单选题】变流器在逆变状态时,控制角α必须在( )
A.
0°~90°
B.
30°~120°
C.
60°150°
D.
90°~150°