造血器官生成各种血细胞的过程在（）
A.造血器官
B.造血
C.血岛
D.骨髓
E.造血微环境
参考答案：B
根据汉语提示，用正确形式填空。
1. We live in China. We are (中国人).
2. I often play on the ________ (电脑).
3. Danny has ________ (小的) ears.
4. It is a ________ (地图) of our city.
5. They ________(说) English and French in Canada.
超声雾化器雾化罐内放入稀释的药液，其液量约为( )
A．100～120mlB．60～80mlC．30～50mlD．10～30mlE．1～5ml
