题目内容

需要帮忙吗?”以下翻译中正确的选项是()

A. What can I do for you?
B. May I help you?
C. May I ask a question?
D. May I know your name?

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请说出用银量法测定工业水中氯离子的方法原理?若水中含有少量氨时将如何处理

请告诉您的团员,准备好护照和登机牌。”应译为()

A. Since you have group visa, you don’t need departure cards
B. Please ask your group members to get passports and boarding passes ready
C. This counter is for tourists with group visA

仪器或工作期间,操作人员不能离开岗位()

A. 升温
B. 分析样品

采样时钢瓶应处于状态()

A. 直立
B. 横卧

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