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【单选题】
Word文档保存时关于文档类型说法错误的是( )A.
word默认保存文档扩展为.docx
B.
.dotx是Word文档模板扩展名
C.
word文档可以直接保存为Web。
D.
doc和docx是一种比较复杂的文档格式，其它文本处理软件无法打开。
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反馈参考答案：
举一反三
【单选题】-Has Tommy finished his homework yet? -I have no idea; he ____ it this morning.
A.
was doing
B.
had been doing
C.
has done
D.
did
【简答题】充电设施既可以安装于( ),也可以安装在( )
【单选题】--- Tommy has just won the first prize in the oral English competition. --- ______ he was so excited this afternoon.
A.
No wonder
B.
It is happy that
C.
It is clear that
D.
No strange
【简答题】The work ______ early next morning. A) has to be finished B) has to finish C) will finish D) is finished
【简答题】Tommy is looking for ______ in the cinema. He has drunk too much water . A B C D
【简答题】（1）含0.4mol Al 3+ 的Al 2 （SO 4 ） 3 中所含的SO 4 2- 的物质的量是______． （2）已知16g A和20g B恰好完全反应生成0.04mol C和31.76g D，则C的摩尔质量为______． （3）如果a g某气体中含有的分子数为b，则c g该气体在标准状况下的体积是（阿伏加德罗常数用N A 表示）______．
【单选题】— Have you seen Tommy, Rose? — No, I think he ________ America. [ ]
A.
has been to
B.
has gone to
C.
has been in
D.
went to
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