Our teacher told us __________.
A:what life on Mars is like
B:how life on Mars is like
C:what life on Mars was like
D:how life on Mars was like
随着经济的发展,人们的“衣、食、住、行”水平有了很大提高,用所学的化学知识回答下列问题:
世界第一长河是尼罗河,其所在大洲及流向是( )
平行四边形
S=102.93m2
=____