修正值与绝对误差等值同号。
参考答案:错
红癣用Woods灯照后呈()
A.珊瑚红色
B.黄白色
C.绿色
D.蓝白色
E.棕色
The government has done ______ to stop the pollution. [ ]
A. something useful
B. useful something
C. anything useful
D. useful anything