洪水调查,若两岸有洪痕,应()绘出水面线,并以其中较能代表主流一岸的水面线为准。
A、只对左岸
B、仅对一岸
C、两岸分别
D、两岸合一
参考答案:C
如果1 g水中有m个氢原子,则阿伏加德罗常数的数值为( )
A.m/9
B.9m
C.2m
D.m/2
The advantage Hip Hop ___________the strong beat is considered reasonable..
A.takes of
B.makes of
C. does with
D.plays with