指示B/L不必通过背书即可转让。
参考答案：错
----Would you like some sweets, dear?
----______, I have a sweet tooth.
A．Of course, thank you
B．No, thanks
C．I’ve got it
D．I don’t think so
A．插座应该与其他用电器并联
B．开关应该与被控制的用电器串联
C．闸刀开关应接在电能表之前
D．开关应接在火线和用电器之间
