在四边形ABCD(凸四边形)中, AB=AD=BC,∠BAD=90°,连结对角线 AC,当△ACD为等腰三角形时,则∠BCD的度数为____
《晏子使楚》中说:“橘生淮南则为橘,橘生淮北则为枳”,造成这一差异的主要原因是( )
用方框中所给单词的适当形式填空,每个单词限用一次。____ Do you prefer _____________ fashion magazines or news magazines?____ The food that my father cooks ____________ good.____ We should _________ the house as soon as possible, or it’ll be quite dangerous.____ The population in that country _______________ slowly now.____ Wild and Wind is a rock band which as the name suggests is full of _____________.
下列建筑分别代表的宗教是( )
美国历史学家斯塔夫里阿诺斯指出:“正如整个世界感受斯蒂芬孙的机车、富尔顿的汽船和加特林的机枪的影响一样,它也感受到《独立宣言》、《人权和公民权宣言》和《共产党宣言》的影响”,斯塔夫里阿诺斯在这里说明的是