题目内容

Please help yourself to the seafood.()

A. Thanks, but I don't like the seafood
B. Sorry, I can't help
C. Well, fish don't suit for
D. No, I can't

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When the power of SART is on, it will().

A. transmit distress signal
B. send response signal
C. transmit the signal of ship‟s position
D. be start by X-band radar

首选于白喉、百日咳带菌者、支原体肺炎、衣原体感染及军团菌病的药物是()

A. 青霉素G
B. 氯霉素
C. 红霉素
D. 四环素
E. 土霉素

《联合国国际货物买卖合同公约》规定在哪些情况下发价一旦生效即不能撤销?

浇筑剪力墙混凝土时应分层下料,分层振捣且每层厚度为振捣器作用长度的1.5倍

A. 正确
B. 错误

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