问题
单项选择题
钻机在4-10米高台阶上工作时履带边缘与坡顶线的距离是（）M。
A.0.5-1
B.1-1.5
C.1.5-2
D.2-2.5
答案
参考答案：D
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钻机在4-10米高台阶上工作时履带边缘与坡顶线的距离是（）M。
A.0.5-1
B.1-1.5
C.1.5-2
D.2-2.5
参考答案：D
The sun was shining quite brightly as Mrs Grant left her house, so she decided not to___ an umbrella with her. She got on the bus to the town and before long it began to rain．The rain had not stopped___ ____the bus arrived at the market half an hour later．Mrs Grant stood up and absent—mindedly(心不在焉地)picked up the umbrella that was on the seat in front of her. A cold voice said loudly，“That is mine，Madam!” Suddenly remembering that she had come out without her umbrella，Mrs Grant felt __ ____ for what she had done，trying at the same time to take no notice of the unpleasant _ the owner of the umbrella was giving her． When she got off the bus，Mrs Grant made straight for a shop where she could buy an umbrella．She found a pretty one and bought it .Then she to buy another as a present for her daughter. Afterwards she did the rest of her and had lunch in a restaurant. In the afternoon she got on the homeward (回家的)bus with the two umbrellas under her arm, and sat down. Then she that, by a curious coincidence(巧合)，she was sitting next to the woman who had made her feel that morning. That woman now looked at her，and then at the umbrellas. “You’ve had quite a good __ ,” she said.
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