正态分布曲线下，横轴上从均数μ到 (μ+1.645σ)的面积为
A．95%B．45%C．90%D．47.5%E．49.5%
参考答案：B
—You seem to show interest in cooking.
—What?_________, I’m getting tired of it.
A．On the contrary
B．To the contrary
C．On the other hand
D．To the other hand
检定0.2S级电流互感器得到的测量值为-0.150%、+4.15′，修约后数据应为（）。
A、-0.16%、+4′
B、-0.14%、+4′
C、-0.16%、+4.0′
D、-0.14%、+4.0′
