安装铸铁气缸盖的缸垫时，其光滑面应朝向（）。A.气缸体 B.气缸盖 C.任意

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     If parents fight with each other, most teenagers must be sorry or even frightened, they might think their parents

don't love each other any more and that would lead to a divorce(离婚).

     In fact, it is normal for parents to disagree and argue. They might disagree about important things like family

decisions. They might even disagree about little things that don't seem important at all-like what's for dinner. Maybe

sometimes parents can feel strongly about their differences that it may lead to arguments. However, these arguments

are often over quickly. Parents may apologize and make up, and the family gets back into its usual way.

     You should find out what it really means when your parents fight. When your parents get upset with each other,

they might cry or say things they don't really mean. Most people lose their cool, so if your parents are fighting, don't

worry too much about it. Try to find a good way to solve it.

     If your parents' fighting really bothers you, you might find it hard to sleep or study. If this happens, try talking to

your parents about their behaviors. They may not even realize their arguments affect you. You can also tell others.

     Just remember that no family is perfect and arguments are common in every family.

1. How do many teenagers feel when their parents fight?

A. Happy.

B. Sorry.

C. Frightened.

D. Sorry and frightened.

2. What does it mean when parents fight?

A. They don't love each other any more.

B. They will divorce because of major family decisions.

C. They disagree with each other about some things.

D. They aren't satisfied with their family at all.

3. What does the underlined words "make up" mean in Chinese?

A. 组成

B. 和解

C. 弥补

D. 化妆

4. What should teenagers do when their parents fight?

A. Keep silence and begin to do their homework.

B. Be angry with their parents and shout at them.

C. Talk to their parents and let them know their feelings.

D. Go to school or tell other friends if it's hard to sleep.

5. Which of the following is TRUE?

A. Teenagers should never argue with mothers.

B. Parents' fight can last for a long time.

C. Don't tell others about your parents' fight.

D. No family is perfect.

错误推测法的基本想法是（）

A.划分有效等价类和无效等价类

B.划分原因和结果

C.列出所有的可能情况

D.列举出程序中所有可能有的错误和容易发生错误的特殊情况，根据它们选择测试用例

某同学在测定匀变速运动的加速度时，得到了一条较为理想的纸带，已知纸带上每5个打点取一个计数点，即两计数点之间的时间间隔为0.1s，依打点先后编为0、1、2、3、4、5…，由于不小心，纸带被撕断了，如图所示，甲图所示纸带是计数点的初始段，则乙图中A，B、C所示的三段纸带中是从甲图所示的纸带上撕下的那段应该是______（填字母）；打这条纸带时，纸带运动的加速度大小是______m/s²．

化脓性脑膜炎与病毒性脑膜炎在脑脊液检查中有根本性区别的项目是（）

A.脑脊液透明度

B.脑脊液压力

C.脑脊液细胞总数

D.蛋白增高程度

E.糖和氯化物定量

下列关于抵押物转让的表述正确的有（）。

A.转让抵押物所得的价款，应当向银行提前清偿所担保的债权

B.抵押人未通知银行或者未告知受让人的，转让行为无效

C.抵押权可以与其担保的债权分离而单独转让或者作为其他债权的担保

D.转让抵押物所得的价款，超过债权数额的部分，归银行所有

E.转让抵押物应当通知银行并告知受让人转让物已经抵押的情况