读图,回答:是对如图所示地形区(阴影区)地貌特征的描述,正确的是( )
A:地表破碎,千沟万壑
B:地形平坦,一望无际
C:河网密布,绿洲点点
D:沙漠广布,植被稀少
下列文学文化常识表述有错的一项是( )
They are from Japan. They are ______ Japanese.
--Yes. Her classes are always and interesting.
3 t=____kg;
72 km/h=____m/s;
40 cm/s2=____m/s2;
2 N/g=____m/s2。