-- _______ I wash the clothes now?
-- No, you _______. You _______ wash them after lunch.
A:Must; needn't; may
B:Can; can't; must
C:May; can't; should
D:Must; mustn't; should
图M一1是局部经纬网图,图中四点符合西半球、南半球的是( )
对人工种子正确的解释是