-There ______ a lot of meat on the plate. Would you like some?-Just a little,please.
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-_________ is in the house?- There is an old woman in the house.
A. What
B. Whose
C. Who
D. Which
There _______ a ball-pen, a ruler and some books on the desk.
A. is
B. are
C. have
D. has
___________是OpenStack镜像服务,用来注册,登录和检索虚拟机镜像。
创建一个名为glance的用户的命令是_______________。