问题
单项选择题
（）是定义自助设备管理及监控系统用户功能和权限范围的集合。
A、掩码
B、用户
C、机构
D、角色
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
（）是定义自助设备管理及监控系统用户功能和权限范围的集合。
A、掩码
B、用户
C、机构
D、角色
参考答案：D
" Wanted: A violin. Can’t pay much. Call…" The ad in the newspaper made me remember my childhood. Because my family was 36 , I couldn’t have a violin. So I asked, "Daddy, may I have a 37 ？" Daddy’s face looked sad. But a few weeks later, Daddy went home with a case in his hand. Inside the case was a second—hand violin for seven dollars. No one could know how 38 I was when I took my violin to school for my first lesson. Several years later, I became famous as a violinist. And then, I carefully 39 the violin away. Now 40 this ad, I discovered the case deep in my closet(储藏室). I put it on the table. Then I picked up the 41 , walked to the telephone and called the number. Later in the day, a man aged about 30 knocked at the door. "I’ve been expecting someone can answer my advertisement. My daughter wants a violin so 42 ," he said, examining my violin. "How much is it?" I said, " 43 dollars. " "Are you surer" he asked. "Seven dollars," I 44 and then added, "I hope your daughter will be 45 to have it and enjoy it as I did. " I smiled, but I found my tears roiling down my face.
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