填料盘根密封元件漏损量规定为()
A:轻质油20滴/分,重质油10滴/分
B轻质油10滴/分,重质油20滴/分
C轻质油10滴/分,重质油5滴/分
参考答案:A
对待挫折的态度不同,结果不同。[ ]
Mike ______ London ______ Paris the day after tomorrow. [ ]
A. leaves, to
B. leaves, for
C. is leaving, to
D. is leaving, for