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【单选题】
听力原文：M: Hi, Miss White. Is Mr. Black in the office? W: Oh, no. You just missed him. He left only a few minutes ago. Who came last?A.
Bill．
B.
The Woman．
C.
Ed．
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举一反三
【简答题】Radiator cap
【单选题】The _____ is designed to draw cooling air through radiator core.
A.
thermostat
B.
radiator cap
C.
fan
D.
radiator core
【判断题】A water-cooling system consists of the engine water jacket, thermostat, water pump, radiator, radiator cap, fan, fan drive belt and necessary hoses.
A.
正确
B.
错误
【单选题】可作用于下丘脑体温调节中枢引起发热的细胞因子是
A.
IL-8 、IL-2、IFN-γ
B.
IL-1 、IL-2、TNF-α
C.
IL-4 、IL-6、TNF-α
D.
IL-1 、IL-6、TNF-α
【简答题】The basic components of a cooling system are radiator, radiator cooling fans, pressure cap and reserve tank, water pump, and thermostat.
【单选题】Fill the radiator__________coolant and attach a radiator cap tester
A.
with
B.
use
C.
in
D.
on
【单选题】To avoid the er of ______, do not remove the reservoir cap while the engine and radiator are still hot.
A.
be burned
B.
burned
C.
burn
D.
being burned
【单选题】The radiator cap is designed to seal ______ so that it operates under some pressure.
A.
the lubricating system
B.
the cooling system
C.
the ignition system
D.
the fuel system
【简答题】机床主变速传动系设计时，为了避免扩大传动误差，以减少振动噪声，一般限制直齿圆柱齿轮的最大升速比不大于（ ）。
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