子宫动脉来自（）。
A.腹主动脉
B.髂总动脉
C.髂内动脉
D.髂外动脉
E.肾动脉
参考答案：C
短文填空。
根据短文内容和所给首字母提示补全单词。
Ed Smith has a great sports c 1 . He has 8 tennis r 2 , 9 basketballs, and 7 baseballs.
He has 3 soccer balls and 5 volleyballs. B 3 he doesn't play sports-he o 4 watches them
o 5 TV!
把5000550，5500500，5000505，5050500，500550，5000055按从大到小的顺序排列是______．
