减法的验算方法既可以用加法,也可以用减法.______.
减法的验算方法既可以用加法,也可以用减法,这种说法是正确的;
故判断为:正确.
小儿生长发育的一般规律,不正确的是()
A.由下到上
B.由近到远
C.由粗到细
D.由低级到高级
E.由简单到复杂
Schedule development can require the review and revision of duration estimates and resource estimates to create an approved project schedule that can serve as a baseline to ______ progress.
A.analyze
B.track
C.level
D.extend