Once, a king showed two men a large basket in the garden. He told them to fill it with water from a well. After they __1__ their work, he left them, saying, “When the sun is down, I will come and
(1)一同学利用游标卡尺两外测脚观察红灯灯丝的衍射图样，他调整两外测脚的宽度如图所示，观察到了灯丝的衍射图样。此时两测脚的距离是___________cm
下表是《中共中央关于制定国民经济和社会发展第十二个五年规划的建议》诞生的简要过程。 从《中共中央关于制定国民经济和社会发展第十二个五年
节选自《孔子游春》（11分）水奔流不息，是哺育一切生灵的乳汁，它好像有德行。水没有一定的形状，或方或长，流必向下，和顺温柔，它好像有情义
At school I have a good friend. He is an English boy .His name is Tom .He is twelve. We are in No. 3 Middle School .We’re not in the same（同一个） class .He is in Class 2,Grade 1 .Tom’s sist
Our English club was set up two months ago．Now，we have members of 25．We met once a week on Saturday afternoon．So far，we have been conducted a variety of activities on English learning，s
NO和CO都是汽车尾气里的有害物质，它们能缓慢地起反应生成N2和CO2，对此反应，下列叙述中正确的是 A．使用催化剂不能改变反应速率 B．
