如下关于UE的同频测量事件中，表示最好小区发生变化的事件是（） A.1B B.1C

  Jack is a schoolboy. He小题1: c______ from England. This year, he is thirteen years old. He 小题2:l_______ in a small town near London(伦敦). He lives with his grandmother. His parents 小题3:w________ in London. They come back home to visit Jack at 小题4:w_______. Jack小题5:g______to school by bike every day. At school, he likes studying all the 小题6:l_______. He is good 小题7:a_____ English. He listens to the teachers carefully(认真) in class. He works very hard at his lessons. After school, he does his小题8:h ______. He 小题9:w________ TV only on Sunday evening. Jack is a good boy and his parents 小题10:l_____him.

下列各穴定位，非与脐平齐的是：（）。

A.神阙

B.带脉

C.大横

D.章门

E.肓俞

通过风险分析显示产品市场方面存在严重的风险，就会做出缓建或放弃项目的决策，这一风险对策属于( )。

A．风险自担

B．风险转移

C．风险回避

D．风险控制

下列属于基因重组的是（）

A.四分体中同源染色体上等位基因随非姐妹染色单体的交叉互换而互换

B.非同源染色体上的非等位基因的重组

C.精子与卵细胞中染色体上基因的重组

D.有性生殖过程中，控制不同性状的基因的重新组合

（）场所室内装修、装饰，应当按照消防技术标准的要求，使用不然、难燃材料。

A、学校图书馆

B、托儿所

C、福利院

D、居民住宅