造成含硫量偏低的原因有（）。
A.气体流量大
B.载气系统漏气
C.炉温高
参考答案：B
The company had about 20 notebook computers but only one third _________ used regularly.
Now we have sixty working all day long.
A．is
B．are
C．was
D．were
对员工违纪行为所采取的措施方法有( )。
A．谈话，即批评
B．发出警告
C．惩罚性调动
D．暂时停职
E．降职
