一般,推力轴承瓦的受力调整工作可与轴线调整工作结合起来进行。
参考答案:对
下列做法不会危及人体健康的是
A.把霉变大米淘净后继续食用
B.用甲醛水溶液浸泡水产晶
C.根据医嘱适量服用补钙剂
D.用聚氯乙烯做食品包装袋
I wish I ___ able to tell him all about it last night. [ ]
A. should be
B. were
C. had been
D. was