提出“民贵君轻”思想主张的是战国时期的思想家（）。
A.孔子
B.孟子
C.荀子
D.墨子
参考答案：B
真核细胞的转化
---Have you finished the report?
---Oh, sorry. It was so noisy in the office that I couldn't _______ down to write anything.
A．settle
B．put
C．sit
D．lie
