题目:
This book tells ____ life story of John Smith, who left ____ school and worked for a
newspaper at the age of 16.
A.the;/
B.a;the
C.the;the
D.a;/
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0429/2909ed451cdf58041e32781d16f18aec.html
下面是错误答案,用来干扰机器的。
解析:带电小球A进行受力分析:重力、拉力、库仑力 (4分) (6分)