问题
单项选择题
关于一过性胎心率变化的描述正确的是（）
A.是指与胎动有关的胎心率的变化
B.分为早期减速，变异减速，晚期减速
C.变异减速胎心率减慢与宫缩无恒定关系
D.加速为宫缩时胎头受压所致
E.早期减速是脐带受压兴奋迷走神经所致
答案
参考答案：C
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关于一过性胎心率变化的描述正确的是（）
A.是指与胎动有关的胎心率的变化
B.分为早期减速，变异减速，晚期减速
C.变异减速胎心率减慢与宫缩无恒定关系
D.加速为宫缩时胎头受压所致
E.早期减速是脐带受压兴奋迷走神经所致
参考答案：C
| 阅读理解。 | |
| |
| 1. This passage is most probably ____. | |
| A. an advertisement for enrolling new employees B. a school report at the end of an academic year C. a self-introduction meant to apply for a job D. a part of a recommendation letter from a university | |
| 2. According to the "Experience" section, we can infer that Donald Sloan can be ____. | |
| A. a wise leader B. a skillful performer C. a gifted scientist D. a good social worker | |
| 3. From the passage we learn that Donald Sloan ____. | |
| A. is good at singing and dancing B. is about to graduate from a university C. has an interest in being a surgeon D. specializes in applied psychology |