A.正確率達(dá)到了60% B.正確率達(dá)到了70% C.正確率達(dá)到了80% D.正確率達(dá)到了100%
A.20%-30% B.30%-40% C.40%-50% D.50%-60%
A.高于50%或者幾乎接近65% B.高于65%或者接近70% C.高于70%或者接近75% D.高于80%或者幾乎接近95%