一阶矩曲线下的面积的符号是()
A.AUMC
B.AUC
C.MRT
D.VRT
E.MAT
参考答案:A
今年五月,长江中下游遭遇严重干旱。下列缓解旱情的做法不正确的是
A.推广使用节水器具
B.工业用水重复利用
C.用增雨剂实施人工降雨
D.引渡海水灌溉农田
As is reported, it won't take a long time ____ the 20th Golden Rooster and Hundred Flowers Film Festival falls in the Binhu New Area. Hefei.
A.since
B.when
C.before
D.that