男性，38岁，腹泻一天住院。大便10多次，为少量粘液便。BP110/70mmHg，

We won't stop _____ to the newspaper  _____ you change your way of pouring the waste air. [ ]

A. to write; if    

B. writing; unless  

C. writing; if  

D. to write; until

Water is (41) important of all the things we (42) and drink. Not many people understand this, (43) it’s quite true. The human body (人体) can go (44) food for a long time, but two (45) three days without water can usually (46) people die.
Many people don’ t understand how much water the human body needs to work well and many people do not drink (47) , even (48) hot weather.
Our body is (49) water, about 65% to 75%, ff we do not have enough water, we’ll (50) tired and many will get ill. So you see, how important water is to us all.

[A] eat [B] have [C] like

执行下列代码后，变量z的值为( )。 public class Test {public static void main (String[]) args) { int x=2； int y=3； int z=4； z- =--y-x--; System. out. Println (z)；} }

A．1

B．2

C．3

D．4

下列说法错误的是（）。

A.废气砣盖不严，会使上升气流吸力降低

B.进风门开度减小，会使上升气流吸力增加

C.进风门盖不严，会使下降气流吸力增加

社会心理支持在主观方面主要是指（）

A.来自社会各方面的援助和社会救助网络的服务

B.个体感受到的来自家庭、亲友和职场等社会各方面的精神帮助

C.获得被支持、被尊重、被理解的体验

D.B和C都是