地图有哪两种分幅方式？各有什么特点？

People Who Moved China, hosted by CCTV, honours the people  ______ the valuable contributions

should be remembered by every Chinese. [ ]

A. whose     

B. of  whom  

C. that      

D. of  which  

它武装了人类，使虚弱无力的双手变得力大无穷，为机械动力在未来创造奇迹打下了坚实的基础。材料描述的是

A．瓦特改良的蒸汽机

B．西门子制成的发电机

C．戴姆勒制成的内燃机

D．狄塞尔发明的柴油机

Everybody in the village likes Jack because he is good at telling and       jokes.      [ ]

A. turning up      

B. putting up      

C. making up    

D. showing up

吹风阶段将吹风气全部放空，制气阶段通入蒸汽可制得半水煤气。