问题
选择题
— Do you like pepper on French fries?
— _____________[ ]
A. Yes, please.
B. No, thanks.
C. Not on French fries, I like pepper on eggs.
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— Do you like pepper on French fries?
— _____________[ ]
A. Yes, please.
B. No, thanks.
C. Not on French fries, I like pepper on eggs.
答案：C
的金属杆ab始终垂直于导轨，并与其保持光滑接触。导轨两端分别接有滑动变阻器和阻值为3.0