无需另外预计现金支出，直接参加现金预算汇总的是销售费、管理费预算。( )

阅读理解。

       Schools and parents in Shenzhen City have been asked to take better care of children’s eyesight as 45 percent of them were found to be shortsighted. Too much reading, poor lighting and too much TV are blamed(责备). Of the city’s high school graduates(毕业生) who applied to study at colleges this summer, two thirds had to have their choices limited because of poor eyesight. Shenzhen Special Zone Daily said.

1. The purpose of this passage is to_______.

A. criticize(批评) children who are shortsighted.

B. blame parents and schools for children’s being shortsighted.

C. ask the high school graduates to pay attention to their eyesight.

D. draw people’s special attention to eye hygiene(卫生).

2. Only_______ of the children inShenzhenCityhave good eyesight.

A. 45 percent

B. less than half

C. 55 percent

D. two thirds 

3. Generally speaking, high school students have_______ eyesight than primary school students.

A. poorer

B. better

C. brighter

D. good 

4. Because of being shortsighted many school graduates________.

A. weren’t allowed to enter college

B. couldn’t graduate from high school

C. couldn’t choose to study what they liked best

D. lost their limited time 

5. In order to take care of eyes, children shouldn’t________.

A. read books

B. watch TV

C. make their eyes too tired

D. see things far away

任强同学在学校化学晚会上进行化学用语接龙活动，请你帮他完成．

任写一种元素符号______--→该元素形成的单质______--→含有该元素的一种化合物______--→该元素在此化合物中的化合价______--→该化合物参加的一个化学反应的化学方程式______--→该反应的类型______．（其实任何一个环节都可以有不同选择，这样答案是开放的）．

某石化车间需设置防爆通风系统，该系统应选用的板材为( )。

A．镀锌钢板

B．不锈钢板

C．玻璃钢板

D．铝板

对适合于基带传输的传输码型的功率谱中（）分量应尽量少。

A.低频

B.中频

C.高频

D.调频

建立实体-联系模型的一般步骤是（）

①确定实体

②设计出E-R图

③确定实体之间联系

④确定相关实体属性

A.①②④③

B.①②③④

C.④①②③

D.①④③②