The solar system in astronomy consists of the sun and its planets. EXCEPT ______, all the planets got their names from Greco-Roman mythology.

A．Mars

B．Earth

C．Venus

D．Jupiter

在汽车充电系统中，若电压调节器电压过低或第一对触点烧蚀，或第二对触点烧结，会导致（）。

A.不充电

B.充电电流过大

C.充电电流过小

D.充电电流不稳