成人严重烧伤时尿量要至少维持在
A．10ml/小时B．20ml/小时C．30ml/小时D．40ml/小时E．50ml/小时
参考答案：C
-----Why, this is nothing but common vegetable soup!
----_____, madam. This is our soup of the day.
A．Let me see
B．so it is
C．Don ‘t mention it
D．Neither do I
A．a为动滑轮，B端钢缆受到滑轮组的拉力大小约为3G
B．a为动滑轮，B端钢缆受到滑轮组的拉力大小约为G
C．a、c为动滑轮，B端钢缆受到滑轮组的拉力大小约为3G
D．a、c为动滑轮，B端钢缆受到滑轮组的拉力大小约为G
G
G