A:admit
B:admire
C:adapt
D:adopt
如图所示的电路、闭合开关,发现灯泡不亮,电压表无示数,电流表有示数但未超出量程,则产生这一现象的原因可能是( )
—The boy can speak both English and Japanese _________ he is only ten.
—Wow, what a clever boy!