A:H2O与BeCl2为角形(V形)
B:CS2与SO2为直线形
C:BF3与PCl3为三角锥形
D:SO3与CO 32− 为平面三角形
The passage is written to ____________.
—Your daughter draws so well.Who taught her?
—_______. She learned it by herself.
下列少数民族中,聚居在北回归线附近的是:
对孟德尔选用豌豆做实验材料并获得成功的原因,下列解释中不正确的是( )