设备监理工程师职业道德中，把在为项目业主服务中可能产生的一切潜在的利益冲突，都要告诉

When I was there, he was still working. He said that he (1) for the last two hours (2) that he was going to stop (3) . He added that if I had arrived ten minutes later, I (4) at home. When I mentioned that the house looked quite (5) , he said that the woman (6) usually cleaned it had been sick for some time and (7) for over a week. When I asked him (8) he did not do it himself, he said that he (9) to do so if Mrs. Jones did not come the (10) day.

[A] that [B] which [C] why

出境的交通工具和人员，必须在最后离开的国境口岸接受检疫。 ( )

制动控制系统会根据载重量的变化而自动调节制动力的大小.

电动机电源电压一般不应高于或低于额定值的（），最低不低于15%，且任俩相电压差不超过三项平均值的5%。

A.15%

B.7%

C.5%

D.6%