自然接地体可利用的地下设施有（）。 A.钢筋结构体 B.金属井管 C.金属水管 D.

甲与乙订立商品房买卖合同，双方约定乙先将房屋交付给甲，但是在甲付清全部价金前房屋的所有权仍属于乙。在交付后全部价金付清前，房屋因大火而灭失。对此，应由谁承担损失？( )

A．甲，因为房屋已经交付

B．乙，因为房屋所有权属于乙

C．甲，因为所有权保留的约定无效，房屋所有权应属于甲

D．甲、乙各负担一半损失

病历摘要：患者，男性，40岁，因“反复发作头痛，伴恶心、呕吐20年”来诊。20年来患者常无明显诱因出现剧烈头痛，发作时伴恶心，呕吐胃内容物，非喷射状，无头晕、耳鸣、视力下降。持续数秒后自行缓解。曾在发作时测量血压为260/120mmHg，平素血压130/80mmHg。近来发作较以往频繁，且持续时间增长，余性质同前。

关于嗜铬细胞瘤，下列叙述正确的有哪一项（或哪几项）？（）

A.可引起发热、体重减轻

B.一般导致血糖偏低

C.一般为低血脂

D.有些患者可以出现低钾血症

E.有些患者可以出现高钾血症

F.有些患者可以出现低钙血症

G.有些患者可以出现高钙血症

H.罹患该疾病的患者胆石症的发生率较高

阅读理解。

     Michael a typical American, stays home on workdays. He plugs into his personal

computer terminal in order to connect with the office. After work he puts on his

headphones, watches a movie on his home video recorder or plays baseball on the

computer. On many days, michael doesn't talk to any other human beings, and he

doesn't see any people except the ones on television. Michael is imaginary, but his

lifestyle is very possible. The inventions of modern technology seem to be cutting

US off from contact with our fellow human being

     The world of business is one area which technology is isolating. US experts say,

for example, that many people will soon be able to work at home. With access(接通)

to a large central computer, employees such as office clerks, insurance agents and

accountants could do their jobs at display terminals in their own homes. They would

never have to actually see the people they're dealing with. In addition, the way

employees are paid will change. Workers' salaries will be automatically paid into

their bankaccounts (账户 ) , makingpaper checks unnecessary. No workers will

stand in line to receive their pay or cash their checks. Personal banking will change,

too. Customers will deal with machines to put in or take out money from their accounts.

     Another area that technology is changing is entertainment. Music,for instance,was

once a group experience. People listened to music at concert halls or in small social

gatherings. For many people now however, music is an individual experience. Walking

along the street or sitting in their living rooms, they wear headphones to build a wall

of music around them. Movie entertainment is changing, too. Movies used to be social

events. Now, fewer people are going out to see a movie. Many more are choosing to

wait for a film to appear on television or are borrowing videotapes to watch at home.

Instead of laughing with others, viewers watch movies in their own living rooms.

1. The sentence," Michael is imaginary, but his lifestyle is very possible" means " "______

A. Michael is a person full of imagination and he can make his dreams come true

B. Michael is not a real person, but the lifestyle doesexist

C. Michael has ambitions but he can't make his dreams come true

D. Michael is a person full of imagination and his style is common nowadays

2. Which of the following is NOT mentioned in the passage?______

A. Clerks will be able to work at home.

B. One can play baseball on the computer.

C. One can listen to music without disturbing others.

D. One can borrow books from libraries at home.

3. What will the author most probably discuss after the last paragraph?______

A. Games and sports.

B. Personal banking.

C. Music and films.

D. International business.

4. What is the main idea of the passage?______

A. We may no longer need to communicate with other human beings.

B. Modern technology seems to be separating human beings.

C. We may no longer need to work in the office.

D. Modem technology makes it possible for us to work and entertain ourselves at home.

某企业需要10万元资金用于购置一台设备，银行规定的补偿性余额为20%，该企业需要向银行申请借款（）万元。

A．15

B．12

C．12.5

D．10

DL/T869-2004中规定，厚度不大于20mm的汽、水管道采用超声波检验时，还应进行射线检验，其检验数量为超声波检验数量的（）

A.10%

B.20%

C.30%

D.40%