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液压传动的优点 (1)由于液压传动是油管连接,所以借助油管的连接可以(), 这是比机械传动优越的地方。 (2)液压传动装置的重量轻、()、惯性小。 (3)可在大范围内实现()。 (4)()均匀平稳,负载变化时速度较稳定。 (5)液压装置易于实现()。 (6)液压传动容易实现()。 (7)液压元件已实现了标准化、系列化和(),便于设计、制造和推广使用。
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参考答案:
举一反三
【简答题】采区上部车场的基本形式有:();()和()车场三种。
【简答题】听录音,判断是'T'否'F'正确。 (     ) 1. Beihai Park is small. (     ) 2. The children are playing. (     ) 3. The children are singing. (     ) 4. There are many people here.
【单选题】下列属于保险公司控制道德风险措施的是()
A.
规定免赔额
B.
规定共同保险
C.
续保优惠
D.
控制保险金额
【判断题】使用约束可以确保在字段中输入有效数据并维护各表之间的关系。
A.
正确
B.
错误
【简答题】用所给单词的适当形式填空。 1. The apples are in the bag. Please take_____ (they) out. 2. The children hate _____ (make) the bed.
【单选题】The children were left_______ an aunt. A.in the event of B. in the pay of C. in the wake of D. in the care of
A.
A
B.
B
C.
C
D.
D
【简答题】根据句意及单词首字母完成句子。 1. They talked and laughed the w_____afternoon . 2. The children were flying k_____on the playground . 3. I like the song very much. It's one of my f_____. 4. 's_____” is another way o...
【简答题】动词填空。 1. You won't pass the exam if you __________ (not be) careful. 2. The children are all looking forward to ___________ (begin) the party at once. 3. Is it important for us ___________ (not take) ...
【简答题】用所给单词的适当形式填空。 1. You must think about _____ (person) safety. 2. The children might hurt _____ (them) if they walk alone. 3. Are you careful or _____ (care)? 4. The classroom is very _____ (noise) befo...
【简答题】句型转换 l. Mark wants to come to China by plane.(改为同义句) Mark wants to to China. 2. The children are going to have supper together.(变为一般疑问句) the children have supper together? 3. Do you want to go to the ...
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