问题
单项选择题
初产妇，足月临产，产程进展顺利，LOA位，儿头平坐骨棘，胎心监护突然出现变异减速，最低胎心率70次/分，持续50秒，本症有可能的原因是
A．胎盘早剥
B．胎头受压
C．胎盘功能减退
D．慢性胎儿窘迫
E．脐带受压
答案
参考答案：E
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初产妇，足月临产，产程进展顺利，LOA位，儿头平坐骨棘，胎心监护突然出现变异减速，最低胎心率70次/分，持续50秒，本症有可能的原因是
A．胎盘早剥
B．胎头受压
C．胎盘功能减退
D．慢性胎儿窘迫
E．脐带受压
参考答案：E
| 用下面方框中的短语的正确形式填空，使句子意思完整。 | |
2. The stream _____ during the hot summer. 3. He's glad to help people _____. 4. The paper were _____ of his pocket. 5. When they did not _____ her, they feared the worst. 6. He can earn _____ ￥500,000 a year. 7. He waters the plant regularly, never letting the soil _____. 8. When we moved to France, the children _____ the change very quickly. 9. One thing was _____, there was nothing wrong with your eyesight. 10. When you _____ a new word in this passage, don't turn to the dictionary at once. |