A:实行长子继承制度
B:宗子掌握主祭祖先的特权
C:废除了世卿世禄的特权
D:以“授民授疆土”为核心
定义行列式运算:a1a2a3a4=a1a4﹣a2a3,函数f(x)=3cos2x1sin2x,则要得到函数f(x)的图象,只需将y=2cos2x的图象( )
—It's very kind of you to carry the box for me.
— __________.
温度/℃
0
20
40
60
80
100
溶解度/g
13.3
31.6
63.8
110
169
246