钢材试验的必试项目有拉伸试验、弯曲试验和化学成分试验()
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------ I hear you ____ in apub .what ’sit like?------ Well ,it ’s very hand work and I ’m always tired , but I don ’t mind.
A. are working
B. will work
C. .were working
D. .will be working
防护员应与室内值班员保持联络随时预报列车运行情况防护员不得兼做其他工作()