选择监理单位一般采用( )，且数量以( )家为官。
A．公开招标；3～5B．公开招标；5～8C．邀请招标；3～5D．邀请招标；5～8
参考答案：C
Lucy is a young woman with a_____son. [ ]
A. three year old
B. three-years old
C. three year olds
D. three-year-old
可转换公司债券
