根据《华润置地商业物业服务标准》要求，洗手盆、台面及镜面应光亮洁净，无水迹（）手印，随时保洁。
A.污渍
B.污迹
C.积尘
D.痕印
参考答案：B, D
液压系统有时会发生泄漏，泄漏会浪费油液、但不会降低油液的速度和压力。( )
_________to train his daughter in computer, he put an ad like this in the paper, “_________, a computer teacher for a ten-year-old girl.”
A．Determined; Wanted
B．Determined; Wanting
C．Determines; Wanted
D．Determining; Wanting
