I do not doubt ________ win in the race.
A:whether he will
B:whether will he
C:that he will
D:that will he
不正确的是( )
两块大小、形状完全相同的金属板平行放置,构成一平行板电容器,与它相连接的电路如图所示,闭合开关S,电源即给电容器充电。