解释检索表达式的含义: 刊名=计算机应用and 作者=张清and 题名=Windows操作系统 and 年=2006-2018
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举一反三
【简答题】Section B Directions : There are 5 incomplete statements here . You should fill in each blank with the proper formof the word given in brackets. Write the word or words in the correspondingspace on th...
【多选题】Mr. Brown was going away for a week. Before he left, he said to his son, "if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be...
A.
The piece of paper.
B.
Mr. Smith.
C.
The visitor.
D.
The boy.
E.
the words Mr. Smith wrote down on a piece of paper.