水开之前是上冷下热还是上热下冷?why?.结论

水开之前是上冷下热还是上热下冷?why?.结论 why it is 还是why is it 应该是why choose 还是why choice 对? come,under是开音节还是闭音节why? 肉丝炒之前,上浆用干淀粉还是水淀粉? why not +doing还是do 蒸鸡蛋糕要按照什么比例放水?另,是开了水之后放还是之前放进蒸锅? 金蝉是未褪壳之前吃,还是只吃壳 why don't we =why not 还是why don't you=why not why not doing sth还是why not do sth还是why not to do sth Why is this crazy?还是 why this is crazy? 是why not buy some还是why not buy any why not to do 还是why not doing 应该是why is nobody here?还是why nobody is here? why not do还是why not to do 是why not do sth.还是why not doing sth. why not to do还是why not doing why not 同义词是 why don't you 还是 why don't you do