对下级机关布置某项工作,要求办理或执行时所使用的通知是()
A.知照性通知
B.发布性通知
C.指示性通知
D.批示性通知
参考答案:C
Uncle John is getting old and he has trouble _____ what others say to him. [ ]
A. hearing
B. hear
C. to hear