签批文件要在规定区域签署意见，一般不得用（）签批文件。
A.钢笔
B.签字笔
C.铅笔
D.毛笔
参考答案：C
When Mom looked back on the early days of their marriage, she wondered how they had managed with ______ money.
A．so few
B．such few
C．so little
D．such little
JB-1A型装置中要求手寻位或报警后（）min复原，继续显示轴位
