- Are all the students from in your class?
- No, there are only 3 in our class. The others are from other countries.
A:Germany; Germen
B:Germany; Germans
C:German; Germans
D:German; Germany
横贯巴西西北部平原地区的亚马孙河,内河航运并不很发达,原因是( )
如图所示,以v0=3m/s的速度水平抛出的小球,飞行一段时间垂直地撞在倾角θ=37°的斜面上,取g=10m/s2,以下结论中正确的是( )
Tom ______________ sending e-mails _____________ letters.because it is faster.