Burning all the lights in the classroom will be a great______ on electric power.
题型：不详难度：来源：
Burning all the lights in the classroom will be a great______ on electric power.| A．waste | B．lack | C．drain | D．damage |
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答案
| C |
解析
| drain “消耗”，常与介词on连用。A“浪费”，为不可数名词；B‘“缺少”；D“损坏，损害”。 |
举一反三
Honesty is the most important______ a man can have.| A．habit | B．manners | C．quality | D．effect |
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After three months, these young students finally became used to the ______ of life in a big city abroad.| A．speed | B．pace | C．rate | D．frequency |
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The new method he suggested sounded good in_______,but is not practical in use.| A．opinion | B．policy | C．theory | D．principle |
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