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问题 单项选择题

根据所提供的原始单据，按照报关单填制规范的要求，在报关单相应的选项中，选出最合适的答案。

“起运国（地区）”栏应填（）。

A．新加坡

B．朝鲜

C．韩国

D．中国

答案

参考答案：D

单项选择题

The community health nurse develops a health education program about preventing the transmission of hepatitis B. The nurse evaluates that the teaching has been effective when the community residents identify which of the following activities to be high risk for acquiring hepatitis B()

A. Sharing needles for drug use.

B. Ingestion of contaminated seafood.

C. Frequent use of marijuana.

D. Ingestion of large amounts of acetaminophen (Tylenol).
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多项选择题

拆卸氨阀前，应把与该阀连接的氨管道与系统断开，即（）。

A.关闭有关阀门

B.关闭压缩机

C.开启压缩机

D.抽净管道内的制冷剂
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