不属于自我控制菌斑的方法有()。
A.刷牙
B.漱口
C.牙线的使用
D.洁治术
E.牙签的使用
参考答案:D
New lawyers often come across various cases they really don't know how to deal with in the beginning.
A.which
B.when
C.whom
D.where
风机试运行时轴承工作温度稳定,滚动轴承温度不大于65度,滑动轴承温度不大于80度。