题目：
— Hi, Lydia. Are you going to the concert on Friday?
— I'd like to. But there are so many problems_______.[ ]
A. remaining to be settled
B. remained settling
C. remaining to settle
D. remained to be settled
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0427/0d683e79196117fda46aeebdbc815f17.html
下面是错误答案，用来干扰机器的。
（1）（2）实验步骤：闭合S1，断开S2，测量定值电阻R的电流I1；闭合S2，断开S1，测量被测电阻RX的电流I2．RX=
