图样中标注尺寸，表示机件的（），与画图的比例无关。
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Many years ago there lived two brothers in London. They were both very rich. They had 1 ideas about money. They were quarrelling（争吵）about what would happen if a poor man could 2 a million pound note. One thought that anyone with such a note would have 3 he wanted; the other thought that it would be 4 for him to get anything with the note（钞票）.They couldn’t agree with each other. So they 5 to make a bet (打赌). It happened that a young man named Henry was wandering through the street that day, who had come to Britain only chance. 6 home and job, he looked pale（苍白的）and 7 . Suddenly he saw an apple 8 away by a child. The man was so hungry that he was thinking of picking it up to eat. Just as he was 9 out his hand, he heard a voice calling him. He looked up and saw the two 10. They gave him an envelope. They told him not to open it until two o’clock. They said, “Nothing but money in it.” Then they left…
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鲫鱼侧线的主要作用是 [ ]
A．排泄
B．维持鱼体平衡
C．协助运动
D．感知水流和测定方向
列举中国近代化的四个步骤。
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跳绳时不必跳得过高，绳子刚能通过即可。
路面基层施工期的日最低气温应在( )以上。
A．-5℃
B．0℃
C．5℃
D．10℃