问题
单项选择题
带式输煤机的电动机运行电流的监视，值班员应随时监视（）。
A.电流表指针无特殊情况一般不动，不需随时监视
B.皮带电动机的运行电流随着皮带上煤量大小的变化而变化，在额定出力下表计所显示的运行电流可在“红线”上下摆动，但显示值长时间超过“红线值”，则应紧急停机查找原因
C.电流表指针超过“红线”值，必须迅速停机查找原因
答案
参考答案：B
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带式输煤机的电动机运行电流的监视，值班员应随时监视（）。
A.电流表指针无特殊情况一般不动，不需随时监视
B.皮带电动机的运行电流随着皮带上煤量大小的变化而变化，在额定出力下表计所显示的运行电流可在“红线”上下摆动，但显示值长时间超过“红线值”，则应紧急停机查找原因
C.电流表指针超过“红线”值，必须迅速停机查找原因
参考答案：B
| 短文改错。 | |
| The village was always very quietly .The people living there were busy about working in their fields during the day and went to bed early at night, tiring after a long day 's hard work. All of them had lived in a village for all their life and had never left for less than one day at a time.On these days how they left, they got up early in the morning .They filled with their cart of fruit ,vegetables and sheeps, and went to the market in the town beyond their valley .They come back in the evening with some money and perhaps a present for their children. That is their life－hard and simple, but not unhappy. | 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |