问题
判断题
安装带传动机构的V带轮必须使主、从动轮的轮槽处于同一平面内，中心线相互二行。
答案
参考答案：对
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安装带传动机构的V带轮必须使主、从动轮的轮槽处于同一平面内，中心线相互二行。
参考答案：对
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| The night was dark, though sometimes the moving clouds allowed a star or two to be seen in the sky. The poor men held on to any bit of wood they could find. They called to the Marie for 1 , but she was far 2 the reach of the human voice. At one o'clock in the morning, the water was getting 3 , and a strong 4 had begun to blow. Suddenly 5 were seen in the distance; another ship! The shouts of the swimmers were heard on board, and willing hands pulled them out of the water. The 6 of the ship that had so fortunately arrived on the scene in time to 7 their lives was the Ellen. What had brought her to the exact spot through the 8 and the pathless sea? Her captain had known 9 about the wreck (沉船) and had indeed tried to sail away from it. But let him speak for himself. "I was forced by the wind," he said long afterwards, "to 10 my course (航道). Just as I did it, a small 11 flew across the ship once or twice and then 12 at my face. I took no 13 of this until exactly the same thing happened at a 14 time, which caused me to think it rather 15 , and while I was thus 16 it, the same bird for the third time, made its appearance and flew 17 in the same way as before. I was then 18 to change my course back to the original (原来的) one. I had not gone far 19 I heard strange noises; and when I tried to 20 where they came from, I found I was in the middle of people who had been shipwrecked. I immediately did my best to save them. | ||||
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