已知函数f（x）=e^x﹣ax﹣a（其中a∈R，e是自然对数的底数，e=2.71828…）．

（Ⅰ）当a=e时，求函数f（x）的极值；

（Ⅱ）若f（x）≥0恒成立，求实数a的取值范围．

To improve your reading ability, you should ____ half an hour every day for learning new vocabulary.

根据短文内容和括号内所给汉语意思，写出空白处各单词的正确形式（每空一词）。

    I have a good friend. ____(她的) name is Linda. She has a ____(紫色的)backpack. It is on the ____(沙发). She has two red ____(词典). They are on the desk in her ____ (房间). She has a yellow ____ (帽子). It is on her bed. Look, the ____ (照片) is on the wall. There are ____ (四) people in her ____ (家庭). They are her parents, Coco and her. Coco is the ____ (名字) of a dog.

There isn't air ______ water on the moon. 　　

在跨越两届全国人大、多次征求民意、历经四次审议后，2009年12月26 日，旨在保护民事主体的合法权益，预防并制裁侵权行为的《侵权责任法》在十一届全国人大常委会第十二次会议上高票通过。《侵权责任法》的颁布实施表明                                                       （   ）
①国家依法尊重和保护公民的合法权益                                ②人民代表大会制度以民主集中制为基石
③我国坚持科学立法、民主立法         ④全国人大常委会领导立法、严格执法