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【单选题】
会议图像与声音主观评价良好率的评价标准为()。
A.
5分以上为良好
B.
4分以上为良好
C.
3分以上为良好
D.
6分以上为良好
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举一反三
【简答题】In the middle of the night, Peter's wife suddenly fell ill. She couldn't help crying, “Oh, my stomach! Get the 1 !” Peter, awaking from a deep sleep, thought his wife was only having a 2 dream. “Stop ...
【单选题】弹簧振子的振幅增加一倍,则()
A.
最大加速度增加一倍
B.
振动周期增加一倍
C.
振动频率增加一倍
D.
总能量增加二倍
【单选题】弹簧振子的振幅增加一倍,则
A.
振动周期增加一倍
B.
最大速度增加一倍
C.
总能量增加二倍
D.
最大加速度不变。
【单选题】弹簧振子的振幅增加一倍,则( )
A.
振动周期增加一倍
B.
最大速度增加一倍
C.
总能量增加2倍
D.
最大加速度不变
【简答题】听下面一段对话,回答1-3三个小题。 1. Why didn't the woman enjoy herself? [     ] A. She couldn't enter the park. B. She couldn't see the firework clearly. C. She couldn't find her friends. 2. When did the woman get ...
【简答题】根据汉语提示填写单词。 1. The old woman couldn't find her purse, she looked ________(着急). 2. We ________(举行) an English party the day before yesterday. 3. The baby laughed ________(高兴). 4. If it ________(下雨) tom...
【简答题】阅读理解。 'What's happened to the bottle of medicine?' He couldn't find it in this usual place on a table in the sitting room.' What have you done with it?' he asked his wife. She said she hadn't seen it,...
【单选题】苏轼在《题西林壁》中提出了“当局者迷,旁观者清”这一道理的诗句是
A.
不识庐山真面目,只缘身在此山中
B.
春宵一刻值千金,花有清香月有阴
C.
东风袅袅泛崇光,香雾空蒙月转廊
D.
水光潋滟晴方好,山色空蒙雨亦奇
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