质量为200g的水,温度由100℃降低到40℃,放出的热量是多少焦?【c水=4.

题型:问答题

问题:

质量为200g的水,温度由100℃降低到40℃,放出的热量是多少焦?【c=4.2×103J/(kg•℃)】.

考点:热量的计算
题型:问答题

Most people want to be happy but few know how to find happiness. Money and success alone don’thappiness.  A famous person once said, “Happiness depends on      .” In other words, we make our own happiness. Here are a few ways to help you be happier.

The first secret of happiness is to enjoy the     things in life. Too often, we spend so much time thinking about the    , for example, getting into college or getting a good job, that we can’t enjoy the present. We should enjoy life’s simple pleasures,     spending time with close friends, listening to your favorite music, or reading a good book. People     have close friends often enjoy happier and healthier lives.

Another    of happiness is to be active,and have      . We can collect toy cars,go fishing or play a sport.. In this way, we enjoy ourselves. We can    our problems and only think about the activities.

Finally, many people find happiness in helping others. According to studies, people feel good when they offer to help others.    you want to feel happier, do something nice for someone. We can help a friend with his or her studies, go shopping to get food for an elderly relative, or simply help our parents to do the dishes.

小题1:A. set     B. bring      C. show

小题2:A. ourselves   B. themselves   C. himself

小题3:A. strange  B. surprising  C. simple

小题4:A. future     B. health      C. money

小题5:A. in fact    B. such as  C. instead of

小题6:A. which  B. whom     C. who

小题7:A. secret     B. plan     C. task

小题8:A. wishes     B. hobbies  C. honor

小题9:A. talk       B. know     C.forget

小题10:A. After   B. Though  C. if

题型:问答题

近几年,利用网络传播不良信息已经成为影响群众生活的公害,为此信息产业部出台了《关于进一步加强移动通信网络不良信息传播治理的通知》。这主要体现了政府行使

A.经济调节的职能

B.市场监管的职能

C.公共服务的职能

D.打击犯罪的职能

题型:问答题

在下列关于“对象”、“类”、“事件”和“方法”等概念的叙述中,错误的一条是 ______。

A.在OOP中,对象是构成程序的基本单位和运行实体

B.类是具有不同属性和方法的对象的集合

C.事件是一种由系统预先定义而由用户或系统发出的动作

D.方法是和对象紧密相连的,对象所具有的功能就是它的方法

题型:问答题

与条件表达式"(n)(c++):(c--)"中的表达式(n)等价的表达式是( )。

A.(n==0)
B.(n==1)
C.(n!=0)
D.(n!=1)

题型:问答题

每一工作时段应排班人数,应根据哪些流程决定?

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