下图是我国东西向(北纬32°)地形剖面示意图,该图反映出我国地势总的特征是
A:中部低四周高
B:西部高东部低
C:中部高四周低
D:东部高西部低
─The radio says it________ rain this afternoon,isn't it?
─No. I think it will be sunny.
被称为“微生物学之父”的是( )
—________ I clean the classroom now?
—No, you_________.