皮皮学，免费搜题
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【单选题】
复制目录的命令是（）A.
cp -r
B.
cp -i
C.
cp -p
D.
cp -f
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】某批发企业的包装物是采用五五摊销法 ,若5月1日领用2万元,于8月20日报废则8月份应摊销的金额是( )。
A.
0.5万元
B.
1万元
C.
1.5万元
D.
2万元
【简答题】If you had taken my advice, you _______much better now. (feel)
【简答题】If you had taken my advice, ______ (就不会犯这样严重的错误).
【单选题】If you had taken my advice, you______a doctor now.
A.
are
B.
would be
C.
have been
D.
should be
【简答题】If you had been in my classes in the early McKee days , you would have seen a skinny young man in his late twenties with messy black hair , eyes that looked with a sign of infection , bad teeth and th...
【简答题】You would be much better now if you had taken my advice.
【单选题】在总体均值和总体比例的区间估计中,估计误差
A.
由置信水平确定
B.
由统计量的抽样标准差确定
C.
由置信水平和统计量（或估计量）的抽样标准差确定
D.
样本容量确定
【简答题】You ________ (be) much better now if you had taken my advice.
相关题目：
【单选题】If you had taken my advice, you______a doctor now.
A.
are
B.
would be
C.
have been
D.
should be