在下面蓄电池维护方面，叙述正确的是（）A、对于免维护蓄电池，其实不需要维护。 B、如

微型计算机主机的主要组成部分有( )。

A．运算器和控制器

B．CPU和软盘

C．CPU和显示器

D．CPU、内存储器和硬盘

眼的四个折光体中折光指数最大的是（）。

A.角膜

B.巩膜

C.晶状体

D.房水

E.玻璃体

Miguel’s co-workers don’t quite understand him. One day he is smiling and friendly, a real team player. The next day, he is cross, getting angry over minor things, especially when asked to improve one of his designs.

Identifying your personality characteristics is the first step in developing a good attitude. Are you a positive, confident person or are you shy and reserved? Do you face problems, looking for solutions, or do you feel someone to blame? Characteristics define you. They help you succeed, or they hold you back.

Self-awareness, or understanding the factors that make up your personality, is an important step towards happiness, and happiness is the key characteristic of a good attitude. To become self-aware is to be aware of both your good and bad characteristics.

What are the characteristics that people compliment(恭维) on you? Are you dependable”, “responsible” or “solid”? Pay attention to the compliment because they are a confirmation of your strongest characteristics. You can use these characteristics to create an even better image.

People form opinions about you. Whether they are right or wrong doesn’t enter the question. You, however, can change their opinions by demonstrating the personality characteristics and attitudes that match the way you want to be viewed. In becoming self-aware, understanding how others see you is an important step. This can be painful; but if you are brave enough to try it, it can be an excellent growth experience.

Change is not easy, especially when it has to do with your behaviors. You should break the behavior change into small steps because small steps are easier to achieve and more likely to last. The change will be permanent if you want to change for yourself.

73．The purpose for writing this passage is to__________.

A．help you to get along well with others

B．give you advice on how to be happy

C．help you to get rid of our bad behaviors

D．help you to develop a good personality

74．You should be self-aware because___________.

A．it may help you on the way to success

B．it is a matter of failure or success

C．it will surely make you happy and successful

D．it helps you to create a better mage

75．What may be talked about after this passage?

A．Detailed steps of changing your behaviors

B．Why it is important to improve yourself

C．Why it is hard to change your personality

D．Tips in how to get along well with others

在下面横线上填上适当的语句，完成程序。 #include ＜iostream＞ using namespace std； class Base { int x; public: Base(int i){ x=i;} ～Base(){} }; class Derived : public Base { public: ____________ //完成类 Derive 构造函数的定义 }; int main() { Derived obj; return 0; } 在横线处应填入的语句是 【14】 。

电缆故障有几种常见的类型（）？

A.接地故障

B.短路故障

C.断线故障

D.闪络性故障和混合型故障