氯丙嗪引起直立性低血压的原因是（） A.激动苯二氮类受体 B.阻断M胆碱受体 C.阻

以下列各组线段为边，能组成三角形的是（　　）

A．3cm，4cm，5cm

B．2cm，6cm，8cm

C．4cm，1cm，2cm

D．5cm，3cm，9cm

The worker I hired to repair my house had just finished a difficult first day on the job. A broken wheel made him an hour late; his ladder (梯子) fell down when he was painting the roof and now his old truck wouldn' t start. With each problem he shouted angrily, more at himself than at his things. As I drove him home, the man didn't say a word.

I tried talking to the man to kill time. I managed to find out that he had come up from Blue Hills in Victoria with his family six months ago to find a job. This was his first job since moving here. I now knew why his price was lower than any other worker I could find in the local newspaper. He really needed the job. His clothes told me as much.

On arriving, much to my surprise, he invited me in to meet his family. As we walked through his front garden he suddenly stopped at a small tree and placed his hands on it. Then, when he opened the door he completely changed. Instead of his troubled face, there was now a warm smile, hugs for his two children and a kiss for his wife.

The following day, I asked him about the tree.

"That's my trouble tree," he answered. "Work troubles aren't welcome at home with my wife and the children. So I hang them on that tree every night when I come home. Then in the morning I pick them up again. "

"And you know what else?" he said smiling,"The next morning I find that there aren't as many as I remember hanging up the night before. "

小题1:Which of the following things did NOT happen to the worker?

A．His truck broke down.

B．He was late for work.

C．He fell onto the roof.

D．His ladder fell down.小题2:When did the worker first arrive in this town?

A．Today.

B．Last night.

C．Six weeks ago.

D．Six months ago.小题3:Where did the writer find the worker?

A．Through a newspaper.

B．Beside the trouble tree.

C．In his old house.

D．In Blue Hills, Victoria.小题4:Why did the worker touch the tree?

A．To get good luck,

B．To leave his trouble outside.

C．To send good wishes to his family.

D．To clean his hands.小题5:What can we learn from the passage?

A．Looking for a job can make trouble.

B．It is important to get to work on time.

C．Often our problems are worse than what we think.

D．A happy family can make many problems go away.

哺乳动物细胞以死亡为标准，对辐射最敏感的是()

A.G0期

B.G1期

C.G2期

D.S期

E.M期

在SDH中，B2一次最多可以监测到（）个误码块。

A、1

B、8

C、16

D、24

私人银行客户“财富贷”信用贷，当客户AUM资产发生变动且低于贷款余额（）倍的预警线时，私人银行客户经理应自知晓AUM变动时点起第一时间向个贷中心作出风险提示。

A.2

B.3

C.4

D.5