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【单选题】
以下不属于检查机油机试运行选项的是( )
A.
检查油箱盖上的通气孔畅通，加入符合要求牌号的柴油，油量充足，并打开油路开关
B.
检查油底壳的柴油油量
C.
打开减压机构转曲轴，检查气缸内的喷油油路是否混入空气，排除油路中的空气
D.
检查冷却水泵的叶轮转动是否灵活，传动皮带松紧是否适当
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举一反三
【单选题】I didn’t hear you, because I ________ yesterday’s football .
A.
watch
B.
am watching
C.
watched
D.
was watching
查看完整题目与答案
【单选题】I didn’t hear you _in. You must have been very quiet.
A.
come
B.
to come
C.
came
查看完整题目与答案
【单选题】You _____ me! I didn’t hear you come in.
A.
terrify
B.
frighten
C.
startled
查看完整题目与答案
【单选题】扑热息痛的中间体是
A.
对氨基苯酚
B.
对乙酰氨基苯酚
C.
氯苯
D.
苯酚
查看完整题目与答案
【单选题】–Pardon? I didn’t hear you just now. –I asked .
A.
that Michelle Obama came to China in March
B.
how long did Michelle Obama stay in China
C.
when did Michelle Obama visit Chengdu
D.
who Michelle Obama came to China with
查看完整题目与答案
【判断题】高等教育属于混合产品,不属于纯公共产品。
A.
正确
B.
错误
查看完整题目与答案
【单选题】. —___ I didn’t hear you clearly. It’s too noisy here. —I was saying that the party was great.
A.
Repeat.
B.
Once again
C.
Sorry?
D.
So what?
查看完整题目与答案
【简答题】---Pardon? I didn’t hear you just now. ---I asked . that Michelle Obama came to China in March how long did Michelle Obama stay in China when did Michelle Obama visit Chengdu who Michelle Obama came t...
查看完整题目与答案
【多选题】关于扑热息痛生产工艺中第二步对亚硝基苯酚的还原反应,说法正确的有:
A.
硫化钠应投过量,若硫化钠不足,很有可能存在大量的还原中间态。
B.
投料方式为:把对亚硝基苯酚慢慢加入到盛有硫化钠溶液的还原罐中去。
C.
反应温度控制在38~50℃为好,若高于55℃,易发生氧化的副反应,若低于30℃,则反应不完全。
D.
加硫酸中和析出时, pH为10时产物基本游离,pH为8时析出少量硫磺,中和到7~7.5时,有硫化氢有毒气体产生,因此,调节pH必须考虑加酸速度。
查看完整题目与答案
【单选题】Sorry, I music just now, so I didn’t hear you me.
A.
was hearing; call
B.
heard; called
C.
listened to; called
D.
was listening to; call
查看完整题目与答案
相关题目：
【单选题】I didn’t hear you, because I ________ yesterday’s football .
A.
watch
B.
am watching
C.
watched
D.
was watching
查看完整题目与答案
【单选题】I didn’t hear you _in. You must have been very quiet.
A.
come
B.
to come
C.
came
查看完整题目与答案
【单选题】You _____ me! I didn’t hear you come in.
A.
terrify
B.
frighten
C.
startled
查看完整题目与答案
【单选题】扑热息痛的中间体是
A.
对氨基苯酚
B.
对乙酰氨基苯酚
C.
氯苯
D.
苯酚
查看完整题目与答案
【单选题】–Pardon? I didn’t hear you just now. –I asked .
A.
that Michelle Obama came to China in March
B.
how long did Michelle Obama stay in China
C.
when did Michelle Obama visit Chengdu
D.
who Michelle Obama came to China with
查看完整题目与答案
【判断题】高等教育属于混合产品,不属于纯公共产品。
A.
正确
B.
错误
查看完整题目与答案
【单选题】. —___ I didn’t hear you clearly. It’s too noisy here. —I was saying that the party was great.
A.
Repeat.
B.
Once again
C.
Sorry?
D.
So what?
查看完整题目与答案
【简答题】---Pardon? I didn’t hear you just now. ---I asked . that Michelle Obama came to China in March how long did Michelle Obama stay in China when did Michelle Obama visit Chengdu who Michelle Obama came t...
查看完整题目与答案
【多选题】关于扑热息痛生产工艺中第二步对亚硝基苯酚的还原反应,说法正确的有:
A.
硫化钠应投过量,若硫化钠不足,很有可能存在大量的还原中间态。
B.
投料方式为:把对亚硝基苯酚慢慢加入到盛有硫化钠溶液的还原罐中去。
C.
反应温度控制在38~50℃为好,若高于55℃,易发生氧化的副反应,若低于30℃,则反应不完全。
D.
加硫酸中和析出时, pH为10时产物基本游离,pH为8时析出少量硫磺,中和到7~7.5时,有硫化氢有毒气体产生,因此,调节pH必须考虑加酸速度。
查看完整题目与答案
【单选题】Sorry, I music just now, so I didn’t hear you me.
A.
was hearing; call
B.
heard; called
C.
listened to; called
D.
was listening to; call
查看完整题目与答案