加入过多的润滑油后，润滑油会从（）处漏出。
A.机械密封
B.轴封
C.油杯
D.冷却器
参考答案：B
使用SQL语句从表STUDENT中查询所有姓王的同学的信息，正确的命令是：
A．SELECT*FROM STUDENT WHERE LEFT(姓名，2)=“王”
B．SELECT*FROM STUDENT WHERE RIGHT(姓名，2)=“王”
C．SELECT*FROM STUDENT WHERE TRIM(姓名，2)=“王”
D．SELECT*FROM STUDENT WHERE STR(姓名，2)=“王”
The dichotomy postulated by many between idealism and realism is one of the standard clichés of the ongoing debate over international affairs.
A．division into two parts
B．combination of two parts
C．disparity
D．contradiction
