题干
You should _______ yourself.
A：be strict with
B：be strict in
C：are strict with
D：are strict in
答案(点此获取答案解析）
A
You should _______ yourself.
A：be strict with
B：be strict in
C：are strict with
D：are strict in
的积为纯虚数，则实数a等于 （ ）
p