题目内容
The instructor just nodded to Ellen as she came into the classroom.The instructor nodded to Ellen as she came into the classroom. (This means the instructor did not speak or extend her hand; he only nodded.)
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The instructor nodded just to Ellen as she came into the classroom.The instructor nodded to Ellen as she came into the classroom. (This means the instructor did not nod to anyone except Ellen.)
The instructor nodded to Ellen just as she came into the classroom.The instructor nodded to Ellen as she came into the classroom. (This means the instructor nodded when Ellen came in.)
将下列二进制数转换成等值的十进制数。(10100)2
将下列二进制数转换成等值的十进制数。（0.1001）2
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