电流通过人体的途径，（）的触电最危险。
A.左手至脚
B.右手至脚
C.左手至右手
D.脚至脚
参考答案：A
--- ____I take the newspaper to the classroom?
---No, you mustn’t. You ______ read it only here.
A．Must, can
B．May, can
C．Need, must
D．Must, must
