绞车钢丝绳做钩头两个绳卡之间的距离是钢丝绳直径的()倍。
A、3~4
B、5~6
C、6~7
参考答案:C
看看你的应变能力,用所给单词的适当形式填空。
1.Most children enjoy ___(see) the movie.
2.Look!A woman in red ______(walk) along the road.
3.It's twelve o'clock.The White _______(have) lunch.
4.You should turn left at the______(three) crossing.
5.They ______(watch) the football match tomorrow.
患儿男,生后2天,出生体重为2400g。因吸入性肺炎入院,入院时患儿呼吸急促,口唇稍发绀。即置于辐射保暖床上抢救。
该患儿吸氧的流量应选择每分钟为()
A.1L
B.2L
C.3L
D.4L
E.5L