家用电器之间是 (选填 “并联”或“串联”) ，家庭消耗的电能是用表来测量的。

某大桥建设项目位于市区西部，大桥全长1332m，其中主桥长790m，单孔最大跨径110m，一般跨径40～60m，为特大型桥梁，桥梁设计标准为城市Ⅰ级主干道。基础采用钻孔灌注桩，设计最大单桩承载力18000kN。市政工程勘察复杂程度为Ⅱ类。大桥属地震烈度为7度区的特大型桥梁，桥址附近存在棋盘式断裂构造，但全新世以来，未见活动迹象，桥址处未有断裂构造带通过，区域构造对建桥无不利影响。大桥桥位处地势平坦、开阔，不存在边坡效应条件。该处河床总宽735m，在距北岸（港）160m处有一小河洲，河床呈不对称心形复式断面，主河汊为南汊，宽约510m。

根据工程特点简述施工期噪声源有哪些。

患者，男性，49岁，因劳累后胸痛3年收住入院。入院后根据其发作时的心电图诊胃“心绞痛”。其发作时最可能的心电图表现是

A．T波高大

B．左室肥厚劳损

C．窦性心动过速

D．ST段下移，T波低平，双向，例置

E．ST段呈短暂的抬高，形成单向曲线

Youth volunteers from Beijing University visited Songtang Hospital, a care clinic for the aged and dying patients, on April 21, the second Global Youth Service Day.

Thirty student volunteers from the university’s School of International Studies sat at the beds of the patients in their specially-decorated “care huts”. They talked with them and gave messages to patients kept in their beds.

“I felt sorry that I could not offer more to these people except talking with them and trying to cheer them up”, said Deng Yetao, a third-year student, “But it occurred to me that they need more care and love than babies. They are afraid of the coming death. Their loneliness is worse than physical pains.”

“Even though they are suffering a lot, the majority of the elderly people want to talk to us. Each of them has a lot of life experiences and philosophies to share. Instead of doing them a favor, I felt I was gaining a valuable lesson,” said Mao Xiaohua, another third-year student.

Mao talked with two elderly patients for a whole afternoon. The fact that most of the patients in the 80-room clinic are aged people with diseases which will lead to death soon made the volunteers’ hearts heavy.

Ninety-one percent of the patients will spend the last days of their lives in the clinic, according to a survey by the hospital.

Daily visits and services by social workers and youth volunteers are a very important part of their programme. A total of 330,000 Beijing students from 119 universities and colleges have visited the hospital. Many continue to offer services in their spare time. Some of them volunteer to hold the hands of dying patients during the last minutes of their lives.

Yin Hang, a student from Beijing Medical College, said he felt “the glory of life” as he saw the fading smile on the face of the old man who slipped into a deep unconsciousness while he was holding his hands.

61. Youth volunteers from Beijing University went to Songtang Hospital to ______.

A. pay a visit to the wounded        B. talk with the aged

C. offer services to the aged          D. learn something from the aged

62. What the aged most suffered from is ______.

A. loneliness          B. death                       C. physical pain            D. disease

63. According to what Mao Xiaohua said, we know that_____.

A. the elderly taught him a good lesson when he talked to them

B. he learned something important from the elderly instead of only helping them

C. he only wanted to get something rather than do them a favor

D. he was glad to have given them a favor

64. When volunteers know most of the aged people in the clinic are dying patients, they feel _____.

A. sad                   B. disappointed             C. hopeless                   D. worthless

65. Which of the following statements is TRUE according to the passage?

A. The youth are fond of doing popular things.

B. The Second Youth Service Day is started by the Chinese government.

C. 91% of the aged in China are facing death.

D. The volunteers are taking an active part in the activity

血氨升高常见于（）。

A.尿毒症

B.上消化道出血

C.肝性脑病

D.贫血

E.低蛋白饮食

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