This idea sounds as as that one.
A:greatly
B:well
C:interested
D:exciting
Amy is ____ English girl.
若4x﹣3y﹣6z=0,x+2y﹣7z=0(xyz≠0),则5x2+2y2-z23x2-3y2-10z2的值等于____ .
我国水资源时空分布特点是( )