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问题 单项选择题

男，56岁，胸痛2月余，最近感右臂疼痛、活动受限，胸片如图，最可能的诊断是（）

A.右肺癌

B.右上肺不张

C.右肺上沟瘤

D.右侧胸膜肥厚

E.右肺结核

答案

参考答案：C

单项选择题

The nurse is caring for a woman with phenylketonuria who wants to start a family. Which of the following guidelines should the nurse provide the woman

A. Follow a low-phenylalanine diet before trying to conceive.
B. A low-phenylalanine diet is necessary only during the first trimester.
C. Begin a low-phenylalanine diet when pregnancy is confirmed.
D. Dietary restrictions won’t be necessary.
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多项选择题

滑动轴承相比滚动轴承运转平稳可靠，具有（）等方面的主要优点。

A.径向尺寸大

B.承载能力大

C.抗冲击能力强

D.能获得很高的旋转精度

E.能在较恶劣的条件下工作。
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