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【单选题】
汽车冷起动时,燃油供给系应提供()混合气。
A.
极稀
B.
极浓
C.
经济混合气
D.
功率混合气
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举一反三
【单选题】当发现负责值班的高级船员因疲劳的影响难以保证安全值班时,船长应( )。
A.
做好思想工作,鼓励其克服困难坚持值班
B.
配备精力充沛的其他人员配合其值班
C.
调整值班的安排,使之得到适当的休息,以利于下一个班次时能够胜任职责的要求
D.
亲自监督其值班,以保证航行安全
【单选题】化工装置运行中,由于容器的密闭性不好,或是阀门开关未关闭到位、阀体存在缺陷,导致液体或气体从缝隙或裂口、裂痕处极缓慢地( ),这种微小事故是“漏”。
A.
滴下
B.
冒流
C.
喷出
D.
流出挥发
【单选题】Which of the following would the writer most probably agree to be a form. of mental exercise?
A.
Play PC games.
B.
Do sports.
C.
Read books.
D.
Watch TV.
【单选题】Physical and mental tasks were carried out by the women ______.
A.
prior to strenuous exercise
B.
following strenuous exercise
C.
before they were subjected to unusual pressure
D.
after they were subjected to unusual pressure
【单选题】There food in my house. [     ]
A.
are much
B.
is much
C.
has much
D.
has many
【单选题】化工装置运行中,由于容器的密闭性不好,或是阀门开关未关闭到位、阀体存在缺陷,导致液体或气体从缝隙或裂口、裂痕处极缓慢地流出挥发,这种微小事故是( )。
A.
B.
C.
D.
【单选题】当发现负责值班的高级船员因疲劳的影响难以保证安全值班时,船长应__。
A.
做好其思想工作,鼓励其克服困难坚持值班
B.
配备精力充沛的其他人员配合其值班
C.
调整值班的安排,使之得到适当的休息,以利于下一个班次时能够胜任职责的要求
D.
亲自监督其值班,以保证航行安全
【单选题】当发现负责值班的高级船员因疲劳的影响难以保证安全值班时,应()
A.
做好其思想工作,鼓励其克服困难坚持值班
B.
配备精力充沛的其他人员配合其值班
C.
调整值班的安排,使之得到适当的休息,以利于下一个班次时能够胜任职责的要求
D.
A、B、C均可以
【单选题】We students should get ____ to ____ nature and take ____ at the same time. [     ]
A.
closely; the; exercise
B.
close; the; exercises
C.
close; /; exercises
D.
close; /; exercise
【单选题】.We have got a heavy snow there in my hometown this winter, which is a sign that this year _____ to be another good one for harvests.
A.
tells
B.
means
C.
promises
D.
intends
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