近年来，我国为处理国际和地区一些热点问题发挥了建设性作用，促进了世界的和平与发展

How do North Americans dress? What do they wear in special      

小题1:      

days? In fact, there is very few formal days, though there are some            小题2:

festivals such as Easter, Christmas, Halloween, or Thanksgiving              小题3:      

Day. What people wear depend on their likes and dislikes. On birthday,        小题4:      

some child wear paper party hats. At Christmas, some people wear           

小题5:      

Santa Claus hats. In winter, Canada people usually wear coats, gloves,       小题6:     

boots and hats. It is near the same in northern China. Generally, people         小题7:                     

in Canada and the United States wear suits for work in offices, as            小题8:      

well as for most formal occasions, just as people do in China. People          小题9:      

in cities around a world wear rather similar clothes.                        小题10:      

参与替代途径激活补体的物质是（）。

A.IgG

B.IgM

C.IgD

D.LPS

E.MBL

通过成果转化应用体现科技创新的价值，确保科技人员在成果转化中得到丰厚回报。

对管理信息系统进行可行性分析时，应对哪些方面进行分析？

简述植物排泄。