柴油机的喷油提前角过大，使发动机（）A、易于启动 B、启动时犯顶，启动困难 C、工作

Mr. Johnson worked in a hospital. Three years ago, when he was sixty-eight, he retired. But a lot of people come to ask him to look them over. He’s very busy in the daytime and he wants to have a good rest at night.

Half a year ago a young man moved in the room upstairs. At first he was quiet. The old man was satisfied with him. But now he has several friends. They often came to see him in the evening. They talked loudly, sang and danced. Mr Johnson was unhappy, but he didn’t say anything.

It was the young man’s birthday yesterday. All his friends came at seven in the evening. They drank too much and made a lot of noise. The old man couldn’t fall asleep the whole night. This morning, as soon as he got up, he went upstairs and began to knock at the door. The young man opened for him and asked him to come in.

“Did you hear me beat the ceiling(天花板) last night, young man?” asked Mr Johnson.

“It doesn’t matter, sir,” said the young man, “ I don’t mind it. It was very noisy in my room, too.”

小题1:Mr Johnson is a ________.

A．teacher

B．policeman

C．doctor

D．gatekeeper小题2:A lot of people come to ask Mr Johnson to look them over because ________.

A．he’s kind to them

B．he’s very polite

C．they don’t pay him for it

D．his medical skill is good小题3:Mr Johnson was ________ last night.

A．angry

B．happy

C．sad

D．strange小题4:Which of the following is true?

A．The young man thought Mr Johnson came to say sorry to him.

B．Mr Johnson wanted to drink with the young man.

C．Mr Johnson hoped the young man to move in another house.

D．The young man was afraid to meet Mr Johnson.

槐花散的功用是

A．清肠止血，疏风行气
B．清热燥湿，凉血止血
C．清热解毒，理气止痛
D．清热凉血，行气化瘀
E．清热泻火，疏风解表

某施工单位承担一台大型压缩机和一台配套的燃气轮机的吊装任务，压缩机单重为82t，燃气轮机单重为37.41t，整体到货。在施工现场可提供200t、170t的大型汽车式起重机各一台。200t、170t汽车式起重机吊索具重量均为2t。由于现场条件限制，两台起重机的最佳使用工况如表3-2。
两台起重机的最佳使用工况

汽车式起重机	吊车臂长/m	作业半径/m	额定负荷/t
200t	24.4	9	71
170t	22.7	7	75.5

注：如果用抬吊时，不均衡荷载系数取1.1。
项目技术负责人组织编制了吊装方案并经项目经理审核、批准。
问题：
1.选择现场合适的汽车式起重机完成压缩机的吊装任务，并作荷载核算。

6502电气集中在办理进路时由于1LJ和2LJ落下使SJ（），实现进路锁闭

怎样写作电视新闻的导语？