单项选择题
A. line timing
B. loop timing
C. internal timing
D. through timing
E. external timing
单项选择题 Your company has a single Active Directory Domain Services （AD DS） domain and 1，000 client computers. You are planning to deploy Windows 7 by using a zero-touch installation process. You need to test the deployment methodology. What should you do first？（）
多项选择题 Which two classes correctly implement both the java.lang.Runnable and the java.lang.Cloneable interfaces？（）
填空题 计算机语言有3种类型，它们是：（）、（）和（）。