叶类生药的来源是（）
A.单子叶植物的茎叶
B.双子叶植物的叶
C.裸子植物的带叶嫩枝
D.B和C
E.A和B
参考答案：D
______, tears came to her eyes.
A．Reading the letter
B．While reading the letter
C．As she was reading the letter
D．To read the letter
汇款
