地球上气温年较差最小的地区是( )
A.热带
B.亚热带
C.温带
D.寒带
地球上气温年较差最小的地区是热带.
故选:A.
It was not rare(稀少) in that people in fifties were going to school for further study.
A.90s; the
B.the 90s; /
C.90s; their
D.the 90s; their
生理情况下,外周血中平均直径最大的白细胞通常为()
A.嗜酸性粒细胞
B.嗜碱性粒细胞
C.中性杆状核粒细胞
D.中性分叶核粒细胞
E.单核细胞