问题
单项选择题
船舶柴油机强制制动可以发生在()时。
A.高于起动转速
B.低于临界转速
C.高于换向转速
D.低于换向转速
答案
参考答案:D
船舶柴油机强制制动可以发生在()时。
A.高于起动转速
B.低于临界转速
C.高于换向转速
D.低于换向转速
参考答案:D
完形填空。 | ||||
A boy and his father were walking in the mountain. 1 the boy fell, hurt himself, and cried, "AAAhhh!!!" 2 his surprise, he heard the voice repeating, 3 in the mountain, "AAAhhh!!!" Then the boy shouted, "Who are you?" He 4 the answer. "Who are you?" He got 5 at the answer, so he shouted, "Foolish!" He received the answer, " 6 !" He looked at his father and asked. "What's going on?" The father 7 and said, "My son, listen." And then he shouted to the mountain, "I love you!" The 8 answered, "I love you!" Again the man cried, "You are the best!" The voice answered, "You are the best!" The boy was surprised, 9 did not understand. Then the father explained, "People call this'Echo', but really this is 10 . It gives you back everything you say or do. Our life is just a reflection (反映) of 11 we have done. 12 you want more love in the world, have more love in your heart. If you want to be 13 , work hard. This can be 14 in everything in life. Life will give you back 15 you have given to it" | ||||
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