已知泵铭牌扬程为80m，原油密度为870kg/m，问该输油时泵压是多少？已知：H=8

阅读理解。从ABCD中选择合适的句子填入短文1-4中，然后为第5题选择正确答案。

      Fire can help people in many ways. 1.________ Fire can heat water, warm houses, give light and cook. But

fire can burn things, too. It can burn trees, houses, animals or people. Sometimes big fire can burn forests.

      2.________ But there are many interesting stories about the first time a man or a woman started a fire. One

story from Australia tells about a man very, very long time ago. He went up to the sun by a rope and brought fire

down.

     Today people know how to make a fire with matches. Children sometimes like to play with them. But

matches can be very dangerous. One match can burn a piece of paper, and then it might burn a house. A small

fire can become a big fire very fast. Fire kills many people every year. So you must be careful with matches.

3._______. Fires need oxygen (氧气). Without oxygen they will die. Cover a fire with water, sand or sometimes

with your coat. This keeps the air away from a fire and kills it. 4._______. Be careless with fire, and it will burn

you.

A. You should also learn to put out fires.

B. Be careful with fire, and it will help you.

C. Nobody knows for sure how people began to use fire.

D. But it can be very dangerous.

5. Which of the following is the main idea of this passage? [ ]

A. Fire can help people in many ways.

B. Fire can be both helpful and dangerous.

C. Fire can burn things and people.

D. We must be careful with matches.

《沙家浜》在“样板化”的过程中，主要人物作了什么样的修改？修改的主要目的是什么改后效果如何？（8分）

招标采购项目进度计划必须具有( )。

A．持久性

B．合理性

C．紧凑性

D．可靠性

E．科学性

患者表情呆滞，沉默寡言，记忆减退，失认失算，词不达意，腰膝痠软，颧红盗汗，耳鸣如蝉，舌红少苔，脉细弦数。证属（）

A.脾肾两虚

B.肝肾阴虚

C.髓海不足

D.瘀血内阻

E.痰浊蒙窍

哪一项不是乳牙龋齿的治疗原则（）

A.降低咬合高度

B.去除病变的牙体组织

C.恢复牙体的外形

D.恢复咀嚼功能

E.利于恒牙列的形成