接近可能有积水的采空区时,探放水时最小的超前距离为()
A.20
B.30
C.40
D.50
参考答案:B
This is my classroom. It is not very big, but it is very nice. There are two blackboards on the wall, but there aren't any pictures. There is a clock on the front(前面的) wall. The map of the world is on the wall, too. There is a computer in the teacher's desk. You can't see it. There are forty students in my class, eighteen girls and twenty-two boys. There are forty desks and chairs for us. Miss Chen is our English teacher. Her English is very good. We all like her class.
小题1:There _____ pictures on the wall.
A. are some B. aren’t any C. are two
小题2:The _____ is on the front wall.
A. map B. clock C. computer
小题3:There are _____ girls in the class.
A. 40 B. 22 C. 18
小题4:_____ English is very good.
A. My B. Their C. Miss Chen’s
小题5:–How many computers are there in the classroom? –_____.
A. One. B. Two. C. Sorry, I don’t know.
女性,43岁。被汽车撞伤腹部后2小时入院。查体:左季肋区疼痛,有移动性浊音,BP75/45mmHg,检查血常规:Hb50g/L。入院后立即输血,当输入20ml时,出现寒战、高热、腰背酸痛、血红蛋白尿,应立即采取().
A.停止输血
B.减慢输血速度
C.物理降温
D.止痛
E.给予异丙嗪