问题
填空题
若矩形ABCD的对称中心恰为原点O，且点B坐标为（-2，-3），则点D坐标为______．
答案
矩形ABCD的对称中心恰为原点O，且点B坐标为（-2，-3），则点D坐标为（2，3），
故答案为：（2，3）．
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若矩形ABCD的对称中心恰为原点O，且点B坐标为（-2，-3），则点D坐标为______．
矩形ABCD的对称中心恰为原点O，且点B坐标为（-2，-3），则点D坐标为（2，3），
故答案为：（2，3）．
| 完形填空。 | ||||
| Australia is l island in the world. It is a 2 _ smaller than China.It is in the 3 of the equator. So when it is hot summer in 4 , it is cold winter in Australia. Australia is big, but the population there is 5 .The population of Australia is the same 6 that of Shanghai,a city in China. Australia is famous (著名的) for its 7 and kangaroos (袋鼠). After a short drive from any town, you will find 8 in the middle of white sheep. Sheep, sheep, 9 are sheep. Have you ever seen a kangaroo? It has a"bag" below its breast. The 10 kangaroo keeps its baby kangaroo in the"bag". It is very interesting,isn't it? | ||||
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