调压阀的整定值可通过手轮旋转来给定，（）针旋转为增高，逆时针旋转为降低。

下列肿瘤以局部破坏为主，很少发生转移的是（）。

A.腺癌

B.鳞癌

C.黑色素瘤

D.基底细胞癌

E. * * 状腺癌

Some say everyday miracles(奇迹) are predestined(注定的)—the right time for the appointed meeting. And it can happen anywhere.

In 2001, 11-year-old Kevin Stephan was a bat boy for his younger brother’s Little League team in Lancaster, New York. It was an early evening in late July. Kevin was standing on the grass away from the plate, where another youngster was warming up for the next game. Swinging his bat back and forth, giving it all the power an elementary school kid could give. The boy brought the bat back hard and hit Kevin in the chest. His heart stopped.

When Kevin fell to the ground, the mother of one of the players rushed out of the stands to his aid. Penny Brown hadn’t planned to be there that day, but at the last minute, her shift(换班)at the hospital had been changed to see her son’s performance. She was given the night off. Penny bent over the senseless boy, his face already starting to turn blue, and giving him CPR(心肺复苏术), breathing into his mouth and giving him chest compressions. And he revived in the end.

After his recovery, he became a volunteer junior firefighter, learning some of the emergency first-aid techniques that had saved his life. He studied hard in school and was saving money for college by working as a dishwasher in a local restaurant in his spare time.

Kevin, now 18, was working in the kitchen when he heard people screaming, customers in confusion, employees rushing toward a table. He hurried into the main room and saw a woman there, her face turning blue, her hands at her throat. She was choking.

Quickly Kevin stepped behind her, wrapped his arms around her and clasped his hands. Then, he used skills he’d first learned in Scouts. The food that was trapped in the woman’s throat was freed. The colour began to return to her face.

“The food was stuck in my throat. I couldn’t breathe,” she said. She thought she was dying. “I was very frightened.”

Who was the woman?

Penny Brown.

小题1: The author wrote the passage to show us that         .

A．miracles are predestined and they can happen anywhere

B．whoever helps you in trouble will get a reward one day

C．God will help those who give others a helping hand

D．miracles won’t come without any difficulty sometimes小题2:Which of the following statements is TRUE of Kevin Stephan?

A．He was hit in the face by a boy and almost lost his life.

B．He was a volunteer junior firefighter, teaching the players first-aid skills.

C．He worked part-time in a local restaurant to save money for college.

D．He saved Penny Brown though he didn’t really know how to deal with food choke.小题3:Why did Penny Brown change her shift and was given the night off that night?

A．She was invited to give the players directions.

B．She volunteered to give medical services.

C．She was a little worried about his son’s safety.

D．She came to watch her son’s game and cheered for him.小题4:The underlined word “revived” in the third paragraph most likely means       .

A．came back to life

B．became worse

C．failed

D．moved小题5: When Kevin knew the woman was Penny Brown, probably he first felt       .

A．happy

B．surprised

C．sad

D．worried

如图所示，在水平桌面上叠放着质量均为M的A、B两块木板，在木板A的上方放着一个质量为m的物块C，木板和物块均处于静止状态。A、B、C之间以及B与地面之间的动摩擦因数都为μ。若用水平恒力F向右拉动木板A，使之从C、B之间抽出来，已知重力加速度为g。则拉力F的大小应该满足的条件是

A．F>μ（2m＋M）g

B．F>μ（m＋2M）g

C．F>2μ（m＋M）g

D．F>2μmg

在约定分期期限内银行尚未通过持卡人信用卡账户扣收的分期付款余额办理提前还款的规定是（）

A.对于在约定期限内银行尚未通过持卡人信用卡账户扣收的分期付款余额，可以办理全额提前还款，也可以办理部分金额的提前还款。部分提前还款只缩短分期期数，不调整每月扣收金额（包括当月的分期扣款），由此产生的尾数在最后一期扣收。

B.对于在约定期限内银行尚未通过持卡人信用卡账户扣收的分期付款余额，只能办理全额提前还款。

住宅工程有线电视线缆宜选用（）

A.数字电视屏蔽电缆

B.屏蔽电缆

C.普通电缆

D.电力电缆