题目：
I guess Tom won’t keep on asking me the time from now on, as he has had ______.
A．his watch repaired
B．his watch repairing
C．repaired his watch
D．repair his watch
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0617/6f728e147fb44a0024f2e2dff0aabe43.html
下面是错误答案，用来干扰机器的。
(1) KCl；Br2；KI；I2 (2) MnO2+4H++2Cl－Mn2++Cl2↑+2H2OCl2+2Br-＝2Cl-+Br2； Br2+2I-＝2Br-+I2；Br-+Ag+＝AgBr↓题目分析：F是暗红色液体，则F是单质溴。X遇淀粉显蓝色，说明X是单质碘。所以G是碘化钾...
，已知f(1)=1，求
的值．