If I         long enough to have a job, I would choose to be a doctor,      those AIDS patients．

A．had lived; helping

B．should live; help

C．were to live; helping

D．should have lived; help

在word中，下述关于分栏操作的说法正确的是()。

A．可以将指定的段落分成指定宽度的两栏

B．任何视图下均可看到分栏效果

C．设置的各栏宽度和问距与页面宽度无关

D．栏与栏之间不可以设置分隔线