电瓶车司机严格遵守“（）”的规定。
参考答案：行人不行车，行车不行人
This is a bird. _____ name is Polly. [ ]
A. It's
B. He's
C. She's
D. Its
处方中“NS”是指
A．生理盐水
B．蒸馏水
C．双眼
D．左眼
E．右眼
