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
参考答案:C
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.
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。