题目内容

电火花线切割加工工艺指标主要包括( )

A. 切割速度
B. 表面粗糙度
C. 加工精度
D. 电极丝损耗

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电火花线切割加工的应用范围包括( )

A. 模具
B. 电极
C. 金属零件
D. 塑料零件

Whatisthepurposeofthejournalist'svisittoJapan?

A. Toaskthepatientsabouttheirmedicaltreatment.
B. TocomparethecitiesinJapanwithothercitiesintheworld.
C. Tointerviewthemayorabouttheimpactoftheatomiccataclysm.
D. TofindthedfferencesbetweenoldJapanandmodernJapan.

Whyistheword"liveliest"inthetitleputinquotationmarks?

A. Becauseitmustbeemphasized.
BecauseitstandsforHiroshima.
C. Becauseitwaswhatthecitywassaidtobe.
D. Becauseitwasquotedfromanotherarticle.

Whatdoesthejournalist'sreactiontohissteppingonHiroshimaindicate?

A. Hewassufferingphysically.
B. Hewasveryguiltyoftheatomiccataclysm.
C. Hewasscaredofthereportingassinment.
D. Hewastiredofthestationmaster'sshouting.

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