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问题 单项选择题

肺脓肿患者经抗生素治疗已3个月，仍咳脓痰，脓腔直径为6cm。下一步治疗应首先考虑()

A．联合用药

B．加强体位引流

C．理疗

D．手术治疗

E．加用气管内滴注抗生素

答案

参考答案：D

选择题

两个氨基酸分子生成二肽时脱去一分子水，水分子中的氧来自于[ ]

A．氨基

B．羧基

C．R基

D．羧基和氨基
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填空题

用所给词的适当形式填空。

1. My little cat always ________ with the ball in the room. (play)

2. My bedroom is on the ________ floor. (one)

3. How many ________ are there in your home? (study)

4. She is ________ to me. (friend)

5. My father goes to the ________ pool every afternoon. (swim)

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