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问题 问答题 简答题

简述中国地震区带的划分。

答案

参考答案：

川滇青藏高原地震构造分区；新疆盆、山地震构造分区；

东北平原地震构造分区；华北古陆地震构造分区；

华南古陆地震构造分区；台湾山地与南中国海域地震构造分区。

单项选择题 A1型题

计算样本资料的标准差这个指标（）

A.不会比均数大

B.不会比均数小

C.不会等于均数

D.决定于均数

E.不决定于均数
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单项选择题

More and more residences, businesses, and even government agencies are using telephone answering machines to take messages or give information or instructions. Sometimes these machines give (1) instructions, or play messages that are difficult to understand. If you (2) telephone calls, you need to be ready to respond when you get a (3)

The most common machine is the (4) used in residence. If you call a home (5) there is a telephone answering machine (6) you will hear several rings and then a recorded message that (7) says something like this: "Hello. We can’t come to the (8) right now. If you want us to call you back, please leave your name and number after the beep." Then you will hear a "beep", (9) is a brief, high-pitched (10) . After the beep, you can say who you are, whom you want to speak to, and what number the person should call to (11) you, or you can leave a (12) . Some telephone answering machines record for only 20 or 30 seconds after the beep, (13) you must respond quickly.

Some large businesses and government agencies are using telephone answering machines to provide information on (14) about which they receive a large volume of (15) . Generally speaking, using these systems (16) you to have a touch-tone phone ( a phone with buttons rather than a rotary dial). The voice on the machine will tell you to (17) a certain button on your telephone if you want information on Topic A, another button for Topic B, and so on. You listen (18) you hear the topic you want to learn about, and then you push the (19) button. Immediately after making your (20) , you will hear a recorded message on the topic.

13（）

A．place

B．phone

C．home

D．room
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