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【单选题】
默认情况下，图层显示高度为（）。A.
100%
B.
200%
C.
300%
D.
400%
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反馈参考答案：
举一反三
【单选题】上上主高次低是指，上声字与上声字相连的， 。
A.
着重强调语气、主字重音，主字语重调即高，次字语轻音则低
B.
着重强调语气、主字重音，主字语重调即低，次字语轻音则低
C.
着重强调语气、主字重音，主字语重调即高，次字语轻音则高
D.
着重强调语气、主字重音，主字语重调即低，次字语轻音则高
【单选题】—Can you tell me what time the flight to Detroit leaves? —I’m sorry, but it _______________.
A.
has been canceled
B.
had been canceled
C.
has canceled
D.
had canceled
【单选题】What has PepsiCo been doing to achieve its objective?
A.
Studying WHO's guidelines.
B.
Increasing its research funding.
C.
Expanding its market overseas.
D.
Cutting its production costs.
【单选题】力【图片】(N)作用于质点P之上。当P的位矢为【图片】(m)时，该力对坐标原点的力矩大小为
A.
29 N × m
B.
11 N × m
C.
19 N × m
D.
3 N × m
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