Jane's always nervous when she has to make a speech; she must accustom herself to be     __  when she

is with people. [ ]

A. at ease      

B. in disguise   

C. at risk          

D. in relief

按照《营业税暂行条例》的规定，下面( ) 项目免征营业税。

A．托儿所提供的育养服务

B．残疾人员个人为社会提供的劳务

C．宗教场所举办的文化、宗教活动的门票收入

D．学生勤工俭学提供的劳务