劳动定员必须以（）为基础。A.职工人数； B.劳动定额； C.工资水平。

阅读理解。 

     You're driving home from work.  You're tired, and the thought of shopping for food and cooking

dinner makes you even more tired. Suddenly you see a brightly lit sign: "Hamburgers! Fries! Shakes!"

Your hands are holding the wheel. Which way are you going to turn?

     If you turn toward the hamburgers, you'll find much of what you're looking for. You won't have to do

any shopping, and you won't have to do any cooking. Not only that, but you won't even have to clean up

after you've eaten.

     Of course, the fast food will be about three times as expensive as food you buy in a store and maybe

half as nutritious (有营养的) as food you cook at home.  That's because you've got to pay for someone

else to buy the food and cook it, and for those unpleasant containers that save on cleanup.  Fast food is

also less nutritious because the meals are not as balanced (均衡的) as those you can prepare at home.

Fat content and calories are high, and the meals don't have enough fresh fruits and vegetables. Fast-food

restaurant owners, who always care about money, also mav cut corners on quality of foods.

     Worst of all, those hamburgers will be the same old hamburgers as you've had a million times

before. With home cooking, you can eat anything you want, not just what you can find in fast-food

restaurants.

     The choice is yours, of course.  However! if you want to be healthy, try cooking at home.

1. When you think of ______. you feel even more tired after work.

A. eating the fast food

B. preparing the fast food

C. shopping and cooking dinner

D. turning toward the hamburgers

2. The fast food will be' about three times as expensive as ______.

A. the food in a store

B  fresh fruits and vegetables

C. the food you cook at home              

D. the food in other restaurants

3. What does the writer try to tell us?

A. She advises us to eat more fast food.

B. She tells us how to choose fast food.

C. She encourages us to cook dinner at home,

D. She tells us where to have dinner when we are tired.

4. What's the best title of the passage?

A. You are what you eat!

B. You eat what you need!

C. Fast, delicious and convenient!

D. Cheap, nutritiously-unbalanced and fresh!

良性肿瘤与恶性肿瘤最重要的鉴别（）。

A.肿块生长发育快慢

B.局部有疼痛

C.肿块边缘是否清楚

D.全身症状是否明显

E.病理组织检查

设N_A代表阿伏加德罗常数的值，下列说法中正确的是（　　）

A．1L 1mol•L^-1的CH₃COOH溶液中含有N_A个氢离子

B．含N_A个Na⁺的Na₂O溶解于1L水中，Na⁺的物质的量浓度为1mol•L-¹

C．0.1mol金属钠在过量氧气充分燃烧，生成的化合物中离子总数为0.15N_A

D．VLCO和NO的混合气体中含有的氧原子个数为

压铸在世界范围的应用最多的是（）

A.汽车部件

B.摩托车部件

C.农业机械

D.电信电器

E.其它。

某城市排水工程，A部门的主要工程是修建排水泵站，是为了将污水或雨水进行提升，最终送到污水处理厂。负责人要求在格栅设置时，将格栅斜角度定为60°，格栅工作台采用封闭式的，因为主泵选用1台轴流泵，2台混流泵，2台离心泵和1台潜水泵，所以决定采用手动单梁起重机，溢流井的位置设在来水管进水闸之后，且溢流，的高度要随洪水位的变化而变化。

排水泵站根据处理厂或提升泵站的规模、( )来选用水泵等设备。

A．输送的水量

B．输送的距离

C．输送的类型

D．扬程不同

E．介质的不同