如图所示用燕麦胚芽鞘进行向光性实验。请据图完成下列问题
生长素的产生部位是（），作用是（）
参考答案：尖端；促进植物生长
The opening ceremony of the 29th Beijing Olympic Games was _____ that everybody was greatly impressed_____ it.
A．a such big success; at
B．such a big success; on
C．a so big success; by
D．so big a success, with
朱砂安神丸一般包衣为（）
A.滑石衣
B.药物衣
C.肠衣
D.糖衣
E.半薄膜衣
