“新标准”要求，在不同生产阶段，要按期完成各类地质报告修编、提交、（）等基础工作。

  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.

论宋代科举制度与中国古代士人政治形成的关系。

某钢筋混凝土框架柱基础，柱截面500mm×500mm。基础埋深2.0m，经修正后的地基持力层承载力特征值f_a=230kPa。基础埋深范围内土的加权平均重度γ_m= 18.0kN/m³。基础混凝土为C25，混凝土抗拉强度设计值f_t=1.27N/mm²；钢筋采用HPB235，f_v=210N/mm²。基础下做100厚C10混凝土垫层，基础台阶拟采用阶梯形，每阶高度300，基础总高度900mm。上部结构荷载效应的标准组合：F_y=2780kN。

假设根据计算基础底板按抗弯计算出的受力筋配筋面积为A_s=4500mm²，那么，比较合适的配筋为（）。

A．12～14@110

B．18@250

C．12@80

D．14@200

出生后多长时间内将裸体新生儿俯卧在母体胸前（　 ）。

A．30分钟内

B．40分钟内

C．50分钟内

D．60分钟内

E．70分钟内

万用表转换开关是实现（）。

A.各种测量种类及量程的开关

B.万用表电流接通的开关

C.接通被测物的测量开关