()型电力机车轮对和韶山4改型电力机车轮对相同。
A.韶山l
B.韶山3B
C.韶山6
D.韶山8
参考答案:B
I think the story is really . [ ]
A. interested
B. interest
C. interesting
D. interests
船舶浮力在数值上等于()
A.排水量也水密度的乘积
B.排水量与系数g的乘积
C.入水体积与水密度的乘积
D.入水体积与系数g的乘积