【单选题】—How about going out for a picnic on Sunday morning? —Hmm.___.The weather is very good these days.
【简答题】完形填空。 In some areas of the world the weather is very 1_____ and this fact plays an important part in the daily lives of the people. 2_____ they are farmers, fishermen, or sailors, for instance, they 3...
【简答题】微血管病性溶血性贫血的发病机制主要与下列哪项因素有关? A.微血管内皮细胞大量受损 B.纤维蛋白丝在微血管腔内形成细网 C.血小板的损伤 D.小血管内血流淤滞 E.白细胞的破坏作用
【简答题】用极限和收敛的思想来刻划闭集.即点集A是闭集的充分必要条件(以下简称充要条件)是点集A中的任何一个收敛点列必收敛到A中的一点。
【简答题】证明:在距离空间中,任意开球是开集,任意闭球是闭集。
【判断题】the weather is very bad today.
【单选题】Now_____is late autumn and the weather is very cool.
【单选题】–The weather is very cold these days. – .