下列对公文语言特点的描述正确的是：
A．庄重规范
B．幽默诙谐
C．古朴典雅
D．简短明了
参考答案：A
What made you _______? [ ]
A. feeling so disappointed
B. to feel so disappointed
C. feel so disappointed
D. so disappointing
换算闸瓦压力
