标题: OG it指代请教！ [打印本页] 作者: haveacigar233 时间: 2016-1-27 22:42 标题: OG it指代请教！ Any medical test will sometimes fail to detect a condition when it is present and indicate that there is one when it is not.
A） a condition when it is present and indicate that there is one
B）when a condition is present and indicate that there is one
C）a condition when it is present and indicate that it is present
D）when a condition is present and indicate its presence
E）the presence of a condition when it is there and indicate its presence