单项选择题
Questions 24 and 25 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
Now, listen to the news.
How many people were taken hostage by Phillips
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A.1.
B.2.
C.3.
D.4.
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单项选择题
The following statements about professor Howl are true EXCEPT
A.he has a good reputation in his apartment
B.he is often flattered by students
C.he always welcomes students to his class
D.he is always ready to give up time to students
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单项选择题
Which of the following statements about lignin is CORRECT
A.It can be found in rags.
B.It can shorten the life expectancy of paper.
C.It is easy to separate lignin form wood pulp.
D.It is impossible to separate lignin from wood pulp.
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