2÷（3+2），
=2÷5，
=40%；
答：女生占全校人数的40%．
故选：B．
下列各纬度，一年中有两次太阳直射的是（ ）
A．23.5°S
B．赤道
C．90°N
D．23.5°N
The police accused him ________a bike and brought him to the police station.[ ]
A．in stealing
B．at stealing
C．with stealing
D．of stealing
