—I’m afraid a car is too expensive for me.

—But more and more Chinese can _______ to buy one.

A．expect

B．afford

C．choose

D．offer

预防肺结核的最主要措施是

A．接种卡介苗
B．加强登记管理
C．禁止随地吐痰
D．隔离和有效治疗排菌病人
E．建全防痨组织