常用相对标准差(RSD)来表示（）
A.纯度
B.准确度
C.相对误差
D.限度
E.精密度
参考答案：E
It was generally believed that the show was not as successful as expected, but ________,
I think it was a great success. [ ]
A. personally
B. directly
C. publicly
D. secretly
什么是热负荷，热负荷有哪些？
