种子横切面可见油细胞层的药材是
A.决明子 B.砂仁 C.女贞子 D.栀子 E.苦杏仁
参考答案:B
The chairperson received about three ______ applications to join the Bird watching Club.[ ]
A. hundred
B. hundreds of
C. hundred of
D. hundreds
如何避免镶嵌平面展品的玻璃表面产生的眩光?