根据贷款“五级分类法”的划分，不良贷款是指( )。A．关注类贷款、次级类贷款、可疑

阅读理解。

     Polar bears (北极熊) are very big white bears. They live in the Arctic Circle (北极圈) near the North Pole

but they do not live at the South Pole. Polar bears live in the snow and ice. At the North Pole, there is only

snow, ice and water. There is no land. Sometimes you're hard (难的) to see the polar bears because their

coats are yellow-white. They have very warm coats because it is cold there. 　　

     An adult (成年的) bear can be three meters long and weigh (重) 450 kg. It can stand up on its back legs

because it has very large and wide feet. It can use its front legs like arm. The polar bear can swim very well.

It can swim 120 km out into the water. It has fish and sea animals for food.

1. What is a polar bear like? 　　　

A. It's like a white bear.　　　　　　

B. It likes fish. 　　　　　

C. It likes cold weather.

2. Where do polar bears live?

A. They live in the circle. 　　　　

B. They live at the South Pole.

C. They live in snow and ice.

3. What's at the North Pole?

A. Snow and land. 　　　　

B. Snow ice and water. 　　　　　　　

C. Ice and land.

4. What can a pole bear do?

A. It can swim. 　　　　　　　

B. It can make snow-man. 　　　　　　

C. It can work.

5. What do polar bears eat?

A. They eat fruit. 　　　　　　

B. They eat vegetables. 　　　　　

C. They eat fish.

利用如图所示的滑轮组提升重物，已知绳子最多只能承受200牛顿的拉力，为把一个重900牛顿的物体匀速提升，则应如何把绳子绕在图所示的滑轮组上(不计滑轮重及摩擦)。 (3分)

国防概念的四要素是（）、（）、（）和对象。

决定成立世界贸易组织的谈判是（）

A.乌拉圭回合谈判

B.巴拉圭回合谈判

C.东京谈判

D.北京谈判

吸附塔循环泵停车时其低流量联锁开关应置于（）。

A、旁路

B、正常

C、正常与旁路状态都可以

D、先正常，泵出口阀关闭时置于正常