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【判断题】
( )金属压力加工具有节约金属使用范围广等特点。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】Ships at sea are in urgent need of MSI because they are _____ various kinds of dange.
A.
subject for
B.
liable to
C.
easy to meet
D.
always encounter
【单选题】This important lesson by Professor Wang teaches primary students how to ______ themselves from danger.
A.
pretend
B.
prevent
C.
prepare
D.
protect
【简答题】异烟肼片剂的含量测定方法为( )。
【单选题】The job as an interpreter has the following characteristics EXCEPT
A.
funny
B.
intrepid
C.
dangerous sometimes
D.
exciting
【单选题】_______ not to drive after drinking, some drivers are still trying their luck, which is really dangerous.
A.
Being reminded
B.
To remind
C.
Having reminded
D.
Reminded
【简答题】The disadvantages associated with automation are ______ and ______ and its potential ers.
【单选题】变频器的分类按变换环节可以分为:
A.
电压型变频器和电流型变频器
B.
交-直-交变频器和交-交变频器
C.
U/F压频比控制变频器、SF转差频率控制变频器、VC矢量控制变频器
D.
通用型变频器和专用型变频器
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