宏观经济管理所涉及的各类主体中，实施主体是（）。
A.国家
B.政府
C.职能机构
D.企事业单位
参考答案：D
You can see some photos ______ the trip ______ the Internet.
A．of; on
B．with; in
C．from; at
D．to; by
You must be of those dogs who don't bark. [ ]
A. careful
B. careless
C. anxious
