题目内容

贸易条约与协定是()主权国家为确定彼此的经济关系,特别是贸易关系方面的权利和义务而缔结的书面协议。

A. 一个或一个以上
B. 两个或两个以上
C. 三个或三个以上
D. 四个或四个以上

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SECTION C NEWS BROADCAST
Directions: In this section, you will hear several news items. Listen to them carefully and then answer the questions that follow.
听力原文: About half of the workers of American's Delta Airlines have promised to help buy a new $ 30.000,000 air plane for their company. The workers are offering to give 2.5% of the money they earn in one year to buy the huge plane. The employees are doing this Because Delta Airlines has kept all its workers on the job. Other air lines have cut wages or jobs because of reduced air travel.
Which of the following statements is true?

A. Half of the American Workers have promised to buy a new plane for the Delta Airlines.
B. The workers of Delta Airlines have promised to help buy a new plane for their company.
C. Half of the workers of Delta Airlines have promised to pay half the money for a new plane.
D. Half of the workers of Delta Airlines, have bought a new plane for the company.

地貌按()表示。

A. 图式符号
B. 注记
C. 图式符号加注记
D. 等高线

目前冲击地压的顶测方法不包括下列()。

A. 钻屑法
B. 声发射和微震监测方法
C. 超声波和红外线监测方法
D. 综合指数法

测量的基准线是()。

A. 直线
B. 垂线
C. 铅垂线
D. 参照线

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