电能表起动试验时，启动功率的监视示值误差不能超过（）。
A、±3％
B、±5％
C、±10％
D、±15％
参考答案：B
Most members of the committee were in favour of the suggestion; only a(n) _____ were against it. [ ]
A. majority
B. minority
C. quantity
D. amount
Li+进入唾液的主要方式为（）
A.易化扩散
B.被动扩散
C.主动转运
D.胞饮
E.滤过
