听第10段材料,回答第18至20题。 |
1. How far is the earth from the sun? |
A. 93 million miles. B. 930 million miles. C. 93 billion miles. |
2. What is the temperature on the sun? |
A. About 10000 degrees Fahrenheit. B. Above 10000 degrees centigrade. C. 0ver 2000 degrees Fahrenheit. |
3. Which of the following is true according to the talk? |
A. The brightness of the sun is less astonishing than its heat. B. It would take the fastest rocket several years to reach the sun。 C. Man can’t live without the right amount of heat and light. |