【单选题】_____ man may usually be known by the books he reads as well as by ______ company he keeps.
【判断题】几个用电器不论是串联还是并联使用,它们消耗的总是等于各电器实际消耗功率之和。
【单选题】Everyone can borrow this dictionary ______he keeps it clean otherwise he will have to pay for the damage.
【单选题】Chan keeps the money made from business for himself.
【简答题】He keeps looking at himself in the mirror.