精轧道次的最后三道压下量分配与辊型良好配合，就能改善（）。
参考答案：板型
1只1.0级电能表，测得的基本误差为0.55%时，修约后的数据应为（）。
A.0.005
B.0.006
C.0.0055
D.0.005
A new technique（）,the producity of loading as a whole increased by 20 percent.
A.working out
B.having been worked out
C.having worked out
D.to have been worked out
