通过组织明文规定的渠道进行信息传递和交流的沟通形式是（）
A.书面沟通
B.平行沟通
C.正式沟通
D.非正式沟通
参考答案：C
In such a fierce competition, a person has to make every effort if he ______ .
A．has succeeded
B．is to succeed
C．would succeed
D．will succeed
清除法单元格是指清除该单元格。
