开窗后第一趟钻一般采用动力钻具，或用增斜钻具组合进行增斜钻进，以便尽快离开老井眼，形

阅读理解

     Do you know why different animals or pests(昆虫) have their special colours? Colours in them

seem to be used mainly to protect themselves.

     Some birds like eating locusts(蝗虫), but birds cannot easily catch them. Why? It is because

locusts change their colours together with the change of the colours of crops(庄稼). When crops

are green, locusts look green. But as the harvest(收获) time comes, locusts change to the same

brown colour as crops have. Some other pests with different colours from plants are easily found

and eaten by others. So they have to hide themselves for lives and appear only at night.

     If you study the animal life, you'll find the main use of colouring is to protect themselves. Bears,

lions and other animals move quietly through forests. They cannot be easily seen by hunters. This is

because they have the colours much like the trees.

     Have you ever found an even more strange act? A kind of fish in the sea can send out a kind of

very black liquid(液体) when it faces danger. While the liquid spreads over(散开), its enemies(敌人)

cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.

1. From the passage we learn that locusts __________.

A. are small animals

B. are easily found by birds

C. are dangerous to their enemies

D. change their colours to protect themselves

2. How can pests with different colours from plants keep out of danger?

A. They run away quickly.

B. They have the colours much like their enemies.

C. They hide themselves by day and appear at night.

D. They have to move quietly.

3. Bears and lions can keep safe because __________.

A. they have the colours much like the trees

B. they move quietly

C. they like brown and grey colours

D. they live in forests

4. Why can the kind of fish live up to now?

A. Because it is very big and strong.

B. Because the liquid it sends out can help it escape from its enemies.

C. Because the liquid it sends out can kill its enemies.

D. Because it swims faster than any other fish.

5. Which is the best title for this passage?

A. The Change of Colours for Animals and Pests.

B. Colours of Different Animals and pests.

C. The Main Use of Colours for Animals and Pests.

D. Some Animals and Pests.

以下对防治废气、粉尘和恶臭污染的措施中，说法错误的是（）。

A.国家禁止排污单位向大气中排放含有有毒有害物质的废气和粉尘

B.向大气排放转炉气、电石气、有机烃类尾气等废气的，必须报当地人民政府批准

C.向大气排放含放射性物质的气体和气溶胶，须符合国家有关放射性防护的规定，不得超过规定的排放标准

D.生产、进口消耗臭氧层物质的单位，必须在国家规定的期限内，按照国务院有关行政主管部门核定的配额进行生产、进口

E.向大气排放粉尘的排污单位，可以采取除尘措施

每一位设计师都必须具备一定的（）能力去表达自己的设计思想。

A.绘图表现

B.文案表现

C.效果图表现

D.模型表现

我国耕地土壤重金属污染面积在2011年达到（）亿亩，占耕地总面积的8.3%。

A.2

B.1.5

C.2.5

D.1

绿杨公司因严重资不抵债向法院申请破产，法院已经受理其申请。根据《破产法》的规定，在法院已经受理破产申请、尚未宣告绿杨公司破产之时，下列哪一项财产不构成债务人财产( )

A．绿杨公司享有的未到期债权

B．管理人撤销绿杨公司6个月前以明显不合理价格进行交易涉及的财产

C．绿杨公司所有但已设定抵押的财产

D．绿杨公司购买的正在运输途中的但尚未付清货款的货物