两个因数的积是1.44,一个因数是9,另一个因数是多少?
1.44÷9=0.16
After describing the planned improvements, she went on _____ how much they would cost.
A.to explain
B.explaining
C.to be explaining
D.having explained
烤烟地膜覆盖栽培,掌握最佳盖膜时机的原则是:()。
A.寒冷地区移栽后盖膜
B.温暖地区提前盖膜
C.多雨地区移栽时盖膜
D.干旱地区趁墒盖膜