工件均匀受热变形主要影响其形状精度。
参考答案:对
老师给同学买了3箱矿泉水,每箱24瓶,每瓶3元钱,这些矿泉水一共要花多少钱?(用两种方法解题)
During the last Olympics, all the rooms in the Olympic Village in London are so designed that they are ()to the disabled.
A.accessible
B.available
C.convenient
D.valid