例句與造句

1. The UPGMA ( " Unweighted Pair Group Method with Arithmetic mean " ) and WPGMA ( " Weighted Pair Group Method with Arithmetic mean " ) methods produce rooted trees and require a constant-rate assumption-that is, it assumes an ultrametric tree in which the distances from the root to every branch tip are equal.
2. It's difficult to find weighted pair group method in a sentence. 用weighted pair group method造句挺難的