（）是机关、企事业单位和人民团体向特定的受文对象告知有关事项的晓渝性公文。
A.通知
B.通告
C.公告
D.通报
参考答案：A
— _________, this math problem seemed quite simple to me, but when I tried to work it out, I just couldn’t.
— There are always things like this, I think.
A．On one hand
B．In my opinion
C．At first sight
D．On its own
如果你的领导是位斤斤计较、爱批评人的人，你还会对他提合理化的建议吗？
