下列各数中读出两个0的数是（ ） A．360580 B．550302 C．478250

阅读理解。

     Driving a car at a high speed along a highway seems to be fun. You only need to follow the bright traffic

signs beside the highway and it will take you where you wish to go. But to a London taxi driver, driving is

not an easy job. A taxi driver needs to have not only good driving skills but also a good knowledge of the city

of London, from the loneliest street to the popular restaurant around. He has to be at the service of all kinds of

passengers (乘客) at all times.

     A London taxi driver said the following about his job. During the night it is usual for him to stop two or

three times for some food. He said, "I never drink when I'm working, otherwise I'd lose my license (驾驶执照)."

     He normally goes home between two and three o'clock in the morning. There are times he has to stay

longer and try to make more runs. He said,"That's the worst thing about working for yourself. If you don't

make money, no one is going to give it to you." London taxi drivers not only "take" but also "give". Every

summer hundreds of poor children from London go for a day at the sea ― by taxi! There rides are paid by

the taxi drivers. At the sea, they are met by the mayor (市长), and a lunch party is also held for the taxi drivers

and the children. After a happy day's running around the beaches and visiting the market there, the children go

home again by taxi, free of charge of course!

1. London taxi drivers try to make more runs sometimes mainly because __________.

A. they make a living by driving

B. they prefer to work for themselves

C. they want to help more passengers

D. they are used to working deep into the night

2. How do London taxi drivers "give"?

A. They give the poor children a lunch party at he sea each summer.

B. They give poor children the chance to meet the maor.

C. They pay for some poor children's rides for a day's tour each summer.

D. They play with some poor children at the sea for a day each summer.

3. Which of the following words can be used to describe London taxi drivers?

A. Brave and careful

B. Rich and generous

C. Modest and easy-going

D. Hard-working and kind.

4. The passage is most likely to be found from __________.

A. an advertisement of a taxi company

B. an online travel guide

C. a website about the taxi drivers in London

D. a report about living conditions in London

患者女，25岁。1型糖尿病患者，一直应用胰岛素治疗。2天前受凉后出现咳嗽、咳痰、发热，2小时前出现嗜睡、烦躁不安急诊入院。检查：体温38.7℃，脉搏132次／分，呼吸28次／分，皮肤干燥，呼吸深大，呼气有烂苹果味，心肺无异常，肝脾未触及。血糖33.3mmol/L，尿素氮20mmol／L，血钠140mmol／L，血钾4.2mmol／L，尿酮体（+++）。

对该患者的处理不正确的是（）

A.立即应用胰岛素

B.立即补液

C.纠正水、电解质紊乱及酸碱平衡失调

D.尿酮体消失即停用胰岛素

E.寻找并处理诱因

路基地面排水建筑顺坡一般小于1‰。

长期应用糖皮质激素可引起

A．高血钾
B．低血糖
C．高血钙
D．向心性肥胖
E．磷的排泄减少

石灰岩