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【单选题】
下列关于气阀机构说法中,是错误的是( )。A.
调整气阀间隙应在机器冷态下进行
B.
调整气阀间隙时滚轮应在凸轮基圆上
C.
气阀和阀座因温度过高发生硫酸腐蚀
D.
气阀间隙若有大小，则大的是排气阀，小的是进气阀
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皮皮学刷刷变学霸
举一反三
【单选题】--- Did you understand what the teacher said ? ---Yes! She explained the text in detail to make her lessons __________.
A.
easy understood
B.
easily to understand
C.
easily understood
D.
easy understand
【单选题】- you the text?-Yes, we it two hours ago.
A.
Did, copy, did
B.
Have copied, have
C.
Have, copied, did
D.
Did, copy, had
【简答题】I Checking Your Comprehension Section A Directions: Read the following statements and mark Y (for Yes) if the statement agrees with the information given in the text; N (for No) if the statement contr...
【简答题】Directions:Read the following statements and mark Y (for Yes)if the statement agrees with the information given in the text;N(for No)if the statement contradicts the information given in the text;NG(f...
【简答题】Directions:Read the following statements and mark Y (for Yes)if the statement agrees with the information given in the text;N(for No)if the statement contradicts the information given in the text;NG(f...
【单选题】___ you ___ the text yet ? Yes, we ___ it two hours ago
A.
Did…copy…did
B.
Have…copied…have
C.
Have…copied…did
D.
Did …copy…had
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