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【单选题】
进气冲程时,进气门( ),排气门关闭。
A.
打开
B.
关闭
C.
半开
D.
半关
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参考答案:
举一反三
【单选题】听力原文:What does the man say to the lady at the end of the conversation? (17)
A.
He expresses his appreciation to her.
B.
He wants her to play balls with children.
C.
He invites her to be their guest on the coming Thanksgiving Day.
D.
He is telling jokes with her.
【判断题】盛花 花坛由低矮的观叶植物或花和叶兼美的植物组成,表现群体组成的精美图案或装饰纹样。
A.
正确
B.
错误
【简答题】离心泵在启动前,为什么泵壳内要灌满液体?启动后,液体在泵内是怎样提高压力的?泵入口的压力处于什么状态?
【判断题】盛花花坛由低矮的观叶植物或花和叶兼美的植物组成,表现群体组成的精美图案或装饰纹样。
A.
正确
B.
错误
【单选题】对于下面的程序框图,哪个描述是正确的?
A.
循环会执行一次,计数接线端 会输出数值0
B.
循环不会执行,计数接线端会返回一个空数值(Null)
C.
循环会执行一次,计数接线端  会输出数值1
D.
循环会执行无限次,程序只能人为中止。
【单选题】_____ at the gate of the theatre, he found the ticket for the play was left at home.A.To arriveB.
A.
17._____ at the gate of the theatre, he found the ticket for the play was left at home. A.To arrive
B.
On arriving
C.
As arriving
D.
While arriving
【简答题】Bill Gates was born on October 28, 1955. He grew up in Seattle, Washington. He was a very clever boy. His favorite subjects at school were science and math. When he was 13, he started to play with com...
【单选题】Bill Gates(11) on October 28,1955. He grew up in Seattle ,Washington.He was a very(12 ) boy.His favorite subjects at school were science and maths.( 13) he was 13 years old ,Bill started to play with ...
A.
is born
B.
was born
C.
did born
D.
born
【单选题】My husband ______ playing football. He almost ______ all his spare time ______ with his friends.
A.
does love; spend; playing
B.
does love; spends; playing
C.
do love; spend; playing
D.
loves; spends; to play
【单选题】对于下面的程序框图,哪个描述是正确的?
A.
循环会执行一次,计数接线端会i输出数值0
B.
循环不会执行,计数接线端会返回一个空数值(Null)
C.
循环会执行一次,计数接线端会输出数值1
D.
循环会执行无限次,程序只能人为中止
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