1.设V为n维线性空间,m1,m,…,m为V的一个基

Objectives Focus Warming up 3.1 I would like to speak to… 3.2 Getting people to do things 3.3 Can I take a massage? 3.4 Planning and making calls Sum-up Assignment

“One should beware of mathematicians and all who make empty prophecies. The danger already exists that the mathematicians have made a covenant with the devil to darken the spirit and confine man in the bonds of Hell” St Augustine, Bishop of Hippo, circa 400 A.D “To move things is all that Mankind can do…For such the

分子中含有与碳直接相连的硝基(-NO2)的化合物叫做硝基化合物,它可以被看作是 烃的…个或多个氢原子被硝基取代生成的化合物通式为R-NO2(或ANO2)它和亚硝酸酯