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如果a、b为实数，满足 +b²－12b+36=0，求ab的值．

用方框里所给单词的适当形式填空

sleep  he  kind  true  well  interested  story  think  from  because

I like reading in my free time. I've read all of books which were written by many famous writers from all over the world. But I like a Chinese writer . His name is Xu Zhimo.

Xu was born in a big family. His parents were good at writing. His father taught little Xu by . When Xu was very young, he was in reading. Fables(寓言) and novels were his favorites. He loved reading very much and he often forgot to eat and .

When Xu was about six years old, he began to write some . He kept practicing writing and did better and better. But he still kept on reading, he always believed "Reading makes a full man."

When he grew up, his dream came . He became a world—famous writer. Not only Chinese but also people other countries worshiped（崇拜）him. His works（著作）were enjoyed all over the world. Everyone his works were nice and great.

足球运动员踢足球提出“香蕉球”，说明力的作用效果与力的方向和 有关，飞行中球最终落向地面是由于受到 作用．

如果5x＝9y，那么x∶y＝∶。

金砖国家领导人第九次会晤于9月3日至5日在厦门举行，峰会主题为“深化金砖伙伴关系，开辟更加光明未来”。作为今年金砖国家轮值主席国，中国与金砖各国及其他发展中国家就如何共同开创金砖合作第二个“金色十年”展开讨论。对此认识正确的是（  ）

①这是经济全球化的必然趋势     ②表明我国坚持独立自主和平外交政策

③中国是负责任的大国                 ④中国积极维护世界和平，推动世界经济发展

屈肘时，下列有关肌肉的舒缩状况，叙述正确的是（        ）

   318国道指从上海到西藏樟木的公路。读318国道示意图，完成下面小题

对下面两幅示意图解读正确的是（  ）

下列各组生活现象中，前者为物理变化，后者属于化学变化的一组是（   ）

39×41=40×40=1600。

查字典。

“置之不理”的“置”字，第9画的名称是；用音序查字法应该先查大写字母，后查音节；用部首查字法应该先查部，再查画；“置”在字典里的解释有：①放，搁，摆②设立，装设；③购买。在“置之不理”一词中，“置”的意思应取第种。

盆栽的大叶观赏植物最好不要放在室内，原因是（   ）

下列物质的性质中属于化学性质的是（  ）

图中所示QQ形象来源于某种动物，据此回答。

计算：

It's 10 minutes by bus from our home to school. (对画线部分提问)

  is it from your home to school?

下图为高等动物细胞内蛋白质合成、加工及定向转运的主要途径示意图，其中 a～ f 表示相应的细胞结构，①～⑧表示相应的生理过程。请据图回答问题：

It is necessary children be told to obey traffic rules from an early age.

刘秀在位三十三年，统治后期出现了比较安定的局面，史称（    ）

直接写得数。

×16=       12÷ =          × =         0× ＋ =

1÷ =        ÷ =       ÷  =      × ÷ × =