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【判断题】
rbe是动态电阻,与BJT的静态工作点无关。 A. 对 B. 错
A.
正确
B.
错误
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举一反三
【多选题】柴油发动机启动困难的原因可能有:
A.
空气滤芯堵塞
B.
.燃油系统有空气
C.
启动系统有故障
D.
燃油质量差
【单选题】发动机启动困难的原因是
A.
点火过弱
B.
排气管有裂纹
C.
发动机烧机油
D.
发动机机油侧漏
【单选题】发动机启动困难的原因()
A.
气门间隙过大
B.
汽缸和缸盖产生裂纹
C.
柴油管路进入空气
【单选题】I saw myself in what I wrote.
A.
I realized what I was writing mirrored the situation I was in.
B.
I came to regard myself as a character in my writing.
【单选题】I saw myself in what I wrote.
A.
I realized what I was writing mirrored the situation I was in.
B.
I came to regard myself as a character in my writing.
C.
I saw myself in the mirror.
D.
I prefer writing because it can express myself.
【判断题】现代室内环境设计包括视觉环境、物理环境、心理环境。()
A.
正确
B.
错误
【单选题】I don't ruin myself for my friends; I don't __________ your praise. I care greatly for myself. [     ]
A.
charge
B.
admit
C.
bargain
D.
deserve
【单选题】When I came to myself, I found myself  ____and  _____  a group of people. [     ]
A.
to be at hospital; surrounded by
B.
at hospital; surrounding
C.
at hospital; surrounded by
D.
at hospital; to be surrounded
【单选题】汽油发动机启动困难的原因是()
A.
混合气过浓或过稀
B.
点火不正时
C.
低压电路短路
D.
低压电路断路
【单选题】发动机启动困难的原因()
A.
气门间隙过大
B.
汽缸和缸盖产生裂纹
C.
柴油管路进入空气
D.
柴油油位低
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