围岩性质对冲击地压有什么影响？

水温垂直梯度跃变层

在下图所示“观察水的沸腾”的实验中：

(1)使用温度计之前，应先观察它的_____和_____．

(2)某同学按实验步骤进行了正确操作，但发现从开始加热到水沸腾这段时间过长，出现这一现象的原因可能是_____（写出一种原因即可）．解决的办法是_____．

(3)该同学看到了如图(b)的情景，这是____（选填“沸腾前”或“沸腾时”）的情况．

(4)该同学记录了一组数据见下表，由数据可知，水的沸点为____℃

(5)请你在图(c)的方格纸上根据上表数据画出水的沸腾图像

第三部分：阅读理解：（共20小题；每小题2分，满分40分）阅读下列短文，从每题所给的四个选项中，选出最佳选项。

(A)

What makes a house a home? A home is a place of companionship with people in it who love each other, who are harmonious (和谐的) and closer with one another than with those in the workplace or with classmates at school. A home is a place that’s so magnetic（有吸引力的） that it’s difficult to leave. In a home there is love, sharing and appreciation, and the members help one another.

I have seen families on the street. But if they live, sleep, talk, and eat together, they are a family, even if they are poorly off. You don’t need a roof to make a home. The truly homeless are some of the rich people who build multi-million-dollar houses and are too busy to really live in them. The truly homeless are those who have turned their home into a hotel lobby. The parents work and the children misbehave. They don’t talk and eat together every day. They rarely see each other. The truly homeless people are those with babysitters, caretakers, gardeners and maids. However, people are unaware of this, as they are too busy making money outside the home that they don’t live in. This is another way of looking at the rich and the homeless. Who is to be pitied?

Control of the computer and the Internet is also important to make a house into a home. If the computer is on all the time, the house turns into an office, even if everyone is at home. Many homes these days are just offices. Human communication has stopped. The computer eats up all the time that one should be giving to others within the home. Using the computer moderately gives us time for play and communication, not with a screen, but with other people.

56. Which of the following may serve as the best title for this passage?

A. How to make a house a home?

B. What makes a house a home?

C. Who are truly homeless?

D. What is a home for?

57. The purpose of the first paragraph is to _________.

A. tell us that where there is home there is love

B. tell us what people think a home is

C. tell us the author’s concept（理解）of home

D. tell us how to have a happy home

58. The underlined word “those” refers to ________.

A. people who build multi-million-dollar houses

B. people who have lost their family members

C. people who don’t spend time with the family

D. homeless families living on the street in America

59. Which of the following is FALSE according to the passage?

A. A home is a place where you are willing to stay.

B. Even the poorest people can have a happy home.

C. Computers and the Internet are important for a happy home.

D. Sometimes it’s the rich that should be pitied.

检测底盘装甲的标准有哪些？

除权(息)日的证券买卖，除了证券交易所另有规定的以外，按除权(息)价作为计算涨跌幅度的基准。( )