Read and write. 

A: 1.                                 ?

B: I have a headache

A : 2.                                 ?                                                            

B: I feel sick.

A: 3.                                 ?

B: My father is 32 years old.

A: 4.                                 ?

B: No, he is younger than me.

A: 5.                                 ? 

B: I'm 45 kg.

白血病有感染时，应首选的治疗措施是（）。

A.抗生素

B.血细胞分离机清除过多白细胞

C.骨髓及干细胞移植

D.浓集血小板悬液输注

E.血液透析