【单选题】When making a call, sometimes there will be something wrong with the phone or telephone line. Which of the following expressions is not right when expressing the problems?
A.
The phone is in order.
B.
She has changed her telephone number.
C.
I’ve tried to get through several times but it's always engaged.
D.
Sorry, we were cut off.
【单选题】Windows server 2012 R2计算机管理员有禁用帐户的权限当一个用户有一段时间不用帐户管理员可以禁用该帐户,下列关于禁用帐户叙述正确的是( )
B.
Administrator帐户可以禁用自己,所以在禁用自己之前应先创建至少一个管理员组帐户
【单选题】你是一台 Windows Server 2012 R2计算机的系统管理员,在计算机管理控制台下你看到这台计算机上有几个管理型共享,在这些管理型共享中( )代表系统目录。
【简答题】试校核图示连接销钉的剪切强度。已知F=100KN,销钉直径d=30mm,材料的许用剪切力[τ]=60Mpa,若强度不够,应改用至少多大直径的销钉?
【判断题】高压共轨系统可以实现喷油压力、喷油量、喷油时间等的控制。A
【简答题】试校核图(a)所示连接销钉的剪切强度,已知F=100kN,销钉直径d=30mm,材料的许用切应力[τ]=60MPa,若强度不够,应改用多大直径的销钉?
【单选题】When making a call, sometimes there will be something wrong with the phone or telephone line. At this moment, you can NOT say:
A.
I've tried to get through several times but it's always engaged.
B.
Sorry, we were cut off.
C.
The phone is out of order.
D.
Would you like to leave a message?