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问题 选择题

读“某地岩层厦地貌分布图”，完成1—2题。

1、该类地貌主要分布在我国的[ ]

A、皖、赣、湘

B、陕、甘、宁

C、桂、滇、黔

D、冀、鲁、豫

2、形成图示岩层及地貌的地质作用不包括[ ]

A、地壳运动

B、沉积作用

C、侵蚀作用

D、变质作用

答案

1、C

2、D

问答题 简答题

各类钢板的共同技术要求是什么？
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单项选择题


Directions: There are 10 blanks in the following passage. For each numbered blank, there are 4 choices marked A, B, C and D.

The key to the industrialization of space is the U.S. space shuttle. (51) it, astronauts will acquire a workhouse vehicle (52) of flying into space and returning many times. (53) by reusable rockets that can lift a load of 65 000 pounds, the shuttle will carry devices for scientific inquiry, as well as a variety of military hardware. (54) more significantly, it will deliver materials and machines into space for industrial purposes (55) two decades ago when "sputnik" (artificial satellite) was added to the vocabulary. In short, the (56) importance of the shuttle lies in its promise as an economic tool.
What makes the space shuttle (57) is that it takes off like a rocket but lands like an air plane. (58) when it has accomplished its mission, it can be ready for (59) trip in about two weeks.
The space shuttle, the world’s first true spaceship, is a magnificent step (60) making the impossible possible for the benefit and survival of man.

A．Thus

B．Whereas

C．Nevertheless

D．Yet
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