呈卵圆形,具三棱,表面灰黄色或稍深,有纵线6条的药材是()。
A.巴豆
B.金樱子
C.川楝子
D.栀子
参考答案:A
She is a warm-hearted person she spends a lot of time on volunteer work.
A. in order that B. in order to D. so that D. why
电视机用阴极射线管(彩色)