泽泻横切面可见()
A.油细胞
B.油室
C.树脂腔
D.油管
E.乳管
参考答案:B
Make sentences with the words. 组词成句。
1. need meat we some
2. they park the in play football
3. friends her she visits
牛奶中较缺乏的脂溶性维生素是()
A.维生素B6
B.烟酸
C.维生素C
D.维生素A
E.维生素D