在imageready优化压缩图像时，如果使用了“仿色”不会导致文件尺寸发生变化。
参考答案：错
- I'd like you to tell me something about Shennongjia.
-I'm sorry, but neither Jack nor I ________ there.
A．have been
B．had been
C．have gone
D．has gone
I get the two of them mixed up , they are so similar.[ ]
A. at one time
B. at no time
C. in no time
D. all the time
