小题1:The film is about the Long M_______? Have you ever seen it?

小题2:I’m going to fly there. Would you buy two a_______ tickets for me?

小题3:Let’s buy some pens and pencils at the s__________ shop.

小题4:When Tim saw me, he w_______ his hand to me.

小题5:You must wait for your turn in l_________.

能防止催化剂中毒，并能减少催化剂在使用过程中由于冲蚀和磨损而造成活性组分流失的是（）。

A.均匀型和蛋壳型

B.蛋壳型和蛋白型

C.蛋黄型和蛋白型

D.均匀型和蛋黄型