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问题 单项选择题

患儿，女，16岁，因上呼吸道感染，痰液黏稠，医嘱给予超声雾化吸入。

下列操作错误的是（）

A.水槽中加入冷蒸馏水至250ml

B.雾化罐中的药液为30～50ml

C.先通电源后开雾化开关

D.每次治疗时间30～40分钟

E.需连续使用时，应间歇30min

答案

参考答案：D

听力题

Complete the sentences with the given words in their proper forms (用括号中所给单词的适当形式完成下列句子。每空格限填一词)

小题1:Mr. White lives on the________ floor in that building. (five)

小题2:Walking in the space is one of the _____ of our time. (wonder)

小题3:Tom will study still __________ next term. (hard)

小题4:He is very careless, so he is __________ to be in charge of the experiment. (fit)

小题5:The plane landed ________ at last after flying in the storm for about one hour. (safe)

小题6:Have you ever seen how to _______ a cow? (milk)

小题7:Not everyone enjoys fast food. Jack is the one who ________ hamburgers. (like)

小题8:At the end of every year, some people go back to their ________ homes.(national)
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多项选择题

嘌呤核苷酸从头合成的原料包括

A．磷酸核糖

B．CO2

C．一碳单位

D．谷氨酰胺和天冬氨酸
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