问题
单项选择题
某班五名学生身高各为153厘米、160厘米、166厘米、174厘米、182厘米，那么他们的平均身高为多少厘米（）
A．167
B．168
C．170
D．172
答案
参考答案：A
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某班五名学生身高各为153厘米、160厘米、166厘米、174厘米、182厘米，那么他们的平均身高为多少厘米（）
A．167
B．168
C．170
D．172
参考答案：A
| 阅读理解。 |
| In the past, when people had problems, they went to their families or friends to get advice. Today it is possible to get advice from radio shows, TV programs and telephones hot lines, too. A hot line is a telephone line that offers a direct way of getting in touch with advisers. Most hot lines are completely anonymous callers do not have to say their names or telephone numbers. Most hot lines are usually free, too. Callers do not have to pay for advice or the phone calls even if the calls are long distance. At some hot lines, the advisers are volunteers. Other hot lines pay their advisers for their work. Usually the advisers are full-job people with years of education and experience, but sometimes, the advisers have only taken a short class before starting to work on the hot line. All the advisers listen to people and help them solve their problems. |
| 1. When people call the hot line advisers, they . |
[ ] |
| A. often give their names and telephone numbers B. generally have to pay for the long distance calls C. usually pay nothing for most of the calls and advice D. always try to get in touch with the volunteer advisers |
| 2. How do the hot line advisers work? |
[ ] |
| A. They do what the callers tell them to do. B. They listen to the callers and take their advice. C. They give the callers advice. D. They go to the callers' houses to help them. |
| 3. The writer of the article seems to think that . |
[ ] |
| A. with hot lines people won't get advice from their families or friends B. hot lines help the callers a lot C. people had better pay for the advice and phone calls D. the hot line advisers will solve all of the callers' problems |