问题
单项选择题
不是结肠镜检查禁忌证的是()
A.急性肠道感染
B.严重的肺功能不全者
C.便血
D.肠粘连者
E.精神、心理原因不能配合检查者
答案
参考答案:C
不是结肠镜检查禁忌证的是()
A.急性肠道感染
B.严重的肺功能不全者
C.便血
D.肠粘连者
E.精神、心理原因不能配合检查者
参考答案:C
完形填空。 | |||
In China, traffic keeps to the right. Cars, trucks, buses 1 bikes must all keep to the right side of the 2 . In most other countries, traffic 3 to the left. How can you 4 the roads safer? 5 you cross the road, stop and look each side. 6 left, then right, and then look left again. Don't cross the road if you aren't sure whether the road is clear or not. Don't 7 across the road. 8 is dangerous. If you 9 small children, old people, or blind people walking across the road, help 10 cross the road in safety. Helping others is a kind of virtue (美德) . | |||
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