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【判断题】
线性指未知函数及其各阶导数作为总体是一次的A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】I am writing to express my heartfelt gratitude. I am referring to that unfortunate accident the other day, when I was knocked ()my bike by a motorcycle.
A.
down
B.
off
C.
by
D.
with
【单选题】What is implied in “I am writing a book”?
A.
I am planning to write a book.
B.
For the present period, writing a book is part of my work.
C.
I am writing the book at the moment of talking .
D.
I like writing.
【单选题】—Are you reading a book? — I am writing a letter. [ ]
A.
Yes, I am.
B.
No, I'm not.
C.
Yes, it is.
D.
No, it isn't.
【简答题】Dear Sir or Madam, I am writing in response to the advertisement in the Guardian newspaper on the 1st July.I would like to apply for the post of Technology Sales Representative in your company. I am 2...
【简答题】阅读理解。 I am a writing teacher at a middle school. At the end of a writing class, I asked the students to share what they had written. We had a new student at the school, Al. Al had been with us for onl...
【简答题】I am writing this letter to complain about the service in your hotel.
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