下列计算中正确的是[ ]
A.2m· 3n=6m+n
B.(a-b)2=a2-b2
C.(-3a4)2=6a8
D.(a-b)3(b-a)2=(a-b)5
答案:D
鹅湖书院牌楼正厅青石坊北额镌刻的内容是“斯文宗主”()
The telegram after unloading proceed manla in ballast indicates that the ship will proceed to Manila().
A.with dangerous cargo
B.for discharging
C.with no cargo on board
D.for taking ballast