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【判断题】
液压(液压弹簧)机构检修:正确选用厂家规定标号液压油,厂家未作明确要求时,选用的液压油标号及相关性能不得低于#10航空液压油标准。
A.
正确
B.
错误
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【单选题】差速器技术检验工艺要求,壳体应无裂损,壳体与行星齿轮、()的接触面应光滑、无沟槽。
A.
半轴齿轮
B.
半轴齿轮垫片
C.
十字轴
D.
行星齿轮
【单选题】“There are no bunks for sleeping, just a nice, comfortable cushioned seat. The carriages are clean and roomy.” What type of train ticket does this sentence refer to? ( )
A.
hard sleeper
B.
soft sleeper
C.
hard seat
D.
soft seat
【单选题】酪氨酸经代谢可产生乙酰乙酸和延胡索酸,它属于下列哪类氨基酸
A.
生糖氨基酸
B.
生酮氨基酸
C.
生糖兼生酮氨基酸
D.
酸性氨基酸
E.
碱性氨基酸
【简答题】生糖氨基酸、生酮氨基酸、生糖兼生酮氨基酸
【简答题】生糖氨基酸不能转变为脂肪。
【单选题】差动液压缸,若使其往返速度相等,则活塞直径应为活塞杆直径的
A.
l倍
B.
2倍
C.
2倍
【判断题】政府采购中,供应商具有平等地获取政府采购信息的权利。( )
A.
正确
B.
错误
【单选题】there are no bunks for sleeping,just a nice,comfortable cushioned seat.The carriages are clean and roomy.what type of train ticket does this sentence refer to ?
A.
Hard sleeper
B.
soft seat
C.
hard seat
D.
soft seat
【简答题】根据所给提示写出单词。 1. Sometimes we _____ food at home. (煮) 2. Mike often _____ (have) a picnic outside on weekends. 3. Do you have a _____ (健康) lifestyle? 4. There _____ (be)some milk in the cup. 5. We often...
【单选题】"There are no bunks for sleeping, just a nice, comfortable cushioned seat. The carriages are clean and roomy." What type of train ticket does this sentence refer to?
A.
Hard sleeper
B.
Soft sleeper
C.
Hard seat
D.
Soft seat
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