Read and write.

A: 1.                                                          ?                   

B: I'm 14 years old.

A: 2.                                                           ?

B: She's 160 cm tall.

A: 3.                                                           ?

B: I'm eating lunch.

A: 4.                                                            ?

B: There are two flowers in the garden.  

A: 5.                                                            ?

B: It's in the desk.

药用部位是叶或茎叶，经加工制得的干燥粉末或团块的药材是（）

A.芦荟

B.青黛

C.儿茶

D.海金沙

E.五倍子