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问题 单项选择题 A型题

气管切开的最佳气管环是（）

A.第1环

B.第6环

C.第3～第4环

D.第7环

E.第8环

答案

参考答案：C

单项选择题

无回声见于()

A．胆汁

B．尿液

C．胸腹水及漏出液

D．羊水

E．以上都正确
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单项选择题

Which of the following would the nurse expect to assess as presumptive signs of pregnancy

A. Amenorrhea and quickening.
B. A positive pregnancy test and a fetal outline.
C. Braxton Hicks contractions and Hegar’s sign.
D. Uterine enlargement and Chadwick’s sign.
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