皮皮学，免费搜题
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【判断题】
13 rm 命令可删除文件或目录,其主要差别就是是否使用递归开关 -f。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】给出下列命题： ①平行于同一条直线的两直线互相平行； ②垂直于同一直线的两条直线互相平行； ③平行于同一平面的两条直线互相平行． 其中真命题的个数是（ ）
A.
0
B.
1
C.
2
D.
3
【简答题】As a boy growing up in India，I had longed to travel abroad. I used to listen to the stories my father would tell me about his stay in Canada and tours to Europe in the 1970s，with great interest. My bi...
【简答题】As a boy growing up in India, I had longed to travel abroad. I used to listen to the stories my father would tell me about his stay in Canada and tours to Europe in the 1970s, with great interest. My ...
【简答题】As a boy growing up in India，I had longed to travel abroad. I used to listen to the stories my father would tell me about his stay in Canada and tours to Europe in the 1970s’ with great interest. My b...
【简答题】阅读理解 As a boy growing up in India, I had longed to travel abroad.I used to listen to the stories my father would tell me about his stay in Canada and tours to Europe in the 1970s, with great interest....
【简答题】阅读理解 As a boy growing up in India,I had longed to travel abroad.I used to listen to the stories my father would tell me about his stay in Canada and tours to Europe in the 1970s,with great interest. M...
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