—My mother is nice to all her students. And she gets on well with all her friends.
A:What's your mother?
B:What's your mother like?
C:What does your mother look like?
D:What does your mother like?
下列成就中最大程度地解放了人力,推动农业快速发展的是( )
“北京王麻子剪刀”是享誉海内外几百年的中华老字号,其生产技术曾在“17世纪中国科技的百科全书”中被详细介绍。该书是( )