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_________.

造血细胞包括（）

A.多能造血细胞

B.多能造血干细胞

C.髓系干祖细胞

D.各期红系细胞

E.各期白系细胞