— ______ is it, please?
— It's six o'clock.
A:What's time
B:What's the time
C:What time
D:What the time
一个圆的最长弦长为20cm,则此圆的直径为( )
已知双曲线C:x2a2-y2b2=1a>0,b>0的离心率为52,则C的渐近线方程为( )
下列不属于社区的是( )
下列有关植物蒸腾作用的叙述,错误的是( )