问题 多项选择题

有关肝炎的传染源正确的说法有()

A.甲肝主要是急性患者和隐性感染者

B.乙肝主要是患者和病毒携带者

C.急、慢性丙肝患者是丙肝的传染源

D.急、慢性丁肝患者是丁肝的传染源

E.戊肝的传染源是急性感染者

答案

参考答案:A, B, C, D, E

阅读理解

阅读理解。

     Imagine there is a bank that opens an account (账户 ) for you each morning with $86,400. Every evening

the bank deletes (删除) all the money that remains (剩下,余留).

      Each of us has such a bank. Its name is Time. Every morning, it gives you 86,400 seconds. Every night

your unused seconds disappear.

     If you fail to use the time in your account, the loss is yours. There is no going back. So what will you do

with the account of your time?

      Take out every second, of course! The clock is running. Make the most of today.

      To realize the value of ONE YEAR, ask a student who failed a grade.

      To realize the value of ONE MONTH, ask a mother who gave birth to a baby.

      To realize the value of ONE WEEK, ask the editor of a weekly newspaper.

      To realize the value of ONE HOUR, ask the lovers who are waiting to meet.

      To realize the value of ONE MINUTE, ask a person who missed the train.

      To realize the value of ONE SECOND, ask a person who just avoided (避免,消除) an accident.

      Treasure (珍爱,珍惜) every moment that you have! And treasure it more because you shared it with

someone special. Remember, time and tide wait for no man.

     Yesterday is history.

     Tomorrow is mystery.

      Today is a gift. That's why it's called the present!

1. $86,400 refers to _____ in your account in the passage.

A. money

B. history

C. mystery

D. time

2. The bank gives us _____ minutes every day.

A. 86,400

B. 24,000

C. 1,440

D. 3,400

3. Which is NOT true according to the passage?

A. There's much money in our bank accounts every day.

B. We have 86,400 seconds every day.

C. Time won't go back.

D. Today is a gift.

4. Ask a person who avoided an accident to realize the value of ______.

A. one second

B. one minute

C. one hour

D. one year

5. Each of us has such a bank, so ______.

A. we can use time freely

B. we can save time freely

C. we don't worry about time

D. we must treasure every moment

单项选择题