∵α∈(0,π2),sinα=12
∴α=π6
∴cos(α+π6)=cosπ3=12
故答案为:12
people in the world are suffering from the H1N1 flu. [ ]
A. Several thousands of
B. Ten thousands
C. Thousands of
D. Thousands
陈子昂的诗歌革新理论的要点是什么?