下述误差是不可避免的()
A.随机误差;
B.过失误差;
C.系统误差
参考答案:A
()是评价负荷预测工作效果的主要指标。
A.日负荷预测准确率
B.月平均日负荷预测准确率
C.日最高(最低)负荷预测准确率
D.日负荷预测合格率
He was wild with joy when he ______ a solution to the difficult problem.
A.made up with
B.put up with
C.came up with
D.kept up with