A:英德矛盾逐渐成为帝国主义间的主要矛盾
B:德国打算与英国进行海军军备竞赛
C:赢得争夺的焦点是殖民地和贸易问题
D:德国力图与英国成为海上贸易伙伴
15 + 14 = 75×20%= 45 × 716 = 920 × 518 =
3.14×3= 58 ÷ 14 = 15.7÷5= 20÷ 14 =
18 - 116 = 49÷ 714 = 81× 29 = 56× 57 =
1- 25 = 34 + 45 = 84×50%= 25 ×40=
如图,点A在双曲线y=kx上,AB⊥x轴于点B,且△AOB的面积是2,则k的值是 ____.
Could I speak to________is in charge of International Sales please?( )