检修常用的润滑脂有()。
A、钙基润滑脂;
B、烃基润滑脂;
C、钙钠基润滑脂;
D、钠基润滑脂。
参考答案:A, C, D
Smoking too much may lung cancer and cause other diseases.
A.devote to
B.attend to
C.contribute to
D.come to
“固定资产”账户的期末借方余额表示现有固定资产的净值。()