问题 多项选择题

改性沥青混合料应随拌随用,贮存时间不得超过()h,贮存期间温降不得超过()℃,且结合料不得老化、滴漏及粗细料离析。否则应废弃。

A.24

B.48

C.10

D.20

答案

参考答案:A, C

阅读理解

阅读理解。

     There are 47 different kinds of kangaroos(袋鼠). The smallest are about a quarter of a meter long;

the biggest are taller than a man.

     Kangaroos have very long strong back legs. These are used for jumping. They also have long strong

tails (尾巴) used for resting on. Kangaroos' front legs are much shorter, and are almost like arms.

Kangaroos' heads are quite small, but their ears are quite large.

     Mother kangaroos have a pocket at the front. They have one baby each year. When it is born, the

baby kangaroo goes straight into its mother's pocket. The baby kangaroos stay there for six months.

     The biggest kangaroos stand more than 2 meters tall, and their legs are so strong that they can jump

more than 9 meters. They are very fast, and can travel at more than 50 kilometers an hour. They are very

strong, but only eat fruit, leaves and grass.

1. How many different kinds of kangaroos are there?

A. seven

B. seventy-four

C. fourty-seven

D. forty-seven

2. How large is a big kangaroo?

A. Smaller than a man

B. Bigger than a man

C. The same size as a man

D. A quarter of a meter long.

3. Does each kangaroo have a pocket?

A. Yes, it does.  

B. No, it does.

C. No, it doesn't.

D. It doesn't tell us.

4. How long does a baby kangaroo stay in its mother's pocket?

A. one month    

B. three months  

C. six months        

D. five months

5. How far can kangaroos jump?

A. More than 2 meters.    

B. More than 9 meters.

C. Less than 2 meters.    

D. Less than 9 meters.

判断题