轻度脱水()中度脱水()重度脱水()A．烦躁不安，眼窝明显凹陷，皮肤弹性较差，尿少

单词拼写。

1. Blindness is a very serious ________(残疾).

2. Whenever she went, Brace would like to be _______(陪伴) by her husband.

3. She has a very ________(狭隘的) mind, for which she often becomes the target to be talked about.

4. The scientist _______(放弃) his research for lack of money.

5.They have _______(分发) the lands among the peasants so far.

6.Now _______(点击) the "yes" button on the screen.  

7.The leading actress couldn't appear, and her ______(替代者) clearly didn't know the role very well.

8.Most torches work on two _______(电池).

9.Only a small _______(百分比) of the countries are thankful for our assistance.

10.He raised some proposals to _______(改革) the Labor Party.

破釜沉舟的典故出自以下哪一战役

A．官渡之战

B．巨鹿之战

C．牧野之战

D．城濮之战

如图所示，滑块以速率v₁沿斜面由底端向上滑行，至某一位置后返回，回到出发点时的速率变为v₂，且v₂＜v₁，则 （　　）

A．全过程中重力做功为零

B．在上滑和下滑两过程中，摩擦力做功相等

C．在上滑过程中摩擦力的平均功率大于下滑过程中摩擦力的平均功率

D．上滑过程中机械能减少，下滑过程中机械能增加

电网调度自动化系统主干网采用的双绞线是第（）类双绞线。

A、3；

B、4；

C、5；

D、超5类。

女性患者，32岁，既往月经正常，近一年月经量少，有溢乳现象，临床化验检查示泌乳素明显增高。该患者首先考虑的疾病是（）。

A.颅咽管瘤

B.垂体瘤

C.脑膜瘤

D.听神经瘤

E.其他