评一评、说一说各人的方法.比一比,优点在哪里?
They may be able to help childcare so that you can have a break.
下列有关季风气候对中国的影响,正确的是( )①雨热同期 ②旱涝灾害频繁 ③冬季南北温差减小 ④生物多种多样.
-- Someone is knocking at the door.
-- Who ______ it be at this hour of day?