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【单选题】
下列直探头，在钢中指向性最好的是（ ）A.
2.5P20Z
B.
3P14Z
C.
P20Z
D.
5P14Z
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举一反三
【简答题】《孙子兵法》的主要思想有哪些？
【简答题】in liner siipping, there are many documents used for different purposes. A 1 is issued by the shipper to the carrier requesting allocation of shipping space. A 2 is a document issued by carrier to ack...
【单选题】Different? Because sometimes it can be hard to pinpoint a __4__harm. “Internet addiction can also be called technology addiction. Taking selfies, using mobile phones are different aspects of this. Thi...
A.
actually
B.
specific
C.
model
D.
overuse
E.
thoroughly
F.
negative
G.
nation
H.
significant
I.
monitor
J.
positive K. vulnerable L. physical
【单选题】Many sentences used to describe monetary policy, such as 'steering the economy to a soft landing' or 'a touch on the brakes', makes it sound like a precise science. Nothing could be further from the t...
A.
is comparable to driving a car.
B.
is similar to carrying out scientific work.
C.
will not influence the economy immediately.
D.
will have an immediate impact on the inflation rate.
【简答题】如图6-32所示液压系统，溢流阀调定压力为5MPa，减压阀调定压为1．5MPa，试分析活塞运动期间和碰到挡铁后，系统中A、B两点压力的变化情况。
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