① ____ ② ____ ③ ____
④ ____ ⑤ ____ ⑥ ____
⑦ ____ ⑧ ____
房山区体校甲、乙两队10名参加篮球比赛的队员的身高(单位:cm)如表所示:
队员
1号
2号
3号
4号
5号
甲队
176
175
174
171
乙队
170
173
182
设两队队员身高的平均数分别为,,身高的方差分别为,,则正确的选项是( )
句子配对。
①How heavy is Tom?____ A. There are 15.
②How old is he?____B. He is 15years old.
③How much is the robot?____C. He weighs 51kg.
④How many boys are there under the tree?____D. It's September 15th.
⑤When is your birthday?____E. It's ¥15.
下列各点既位于东半球又属于北温带的是( )