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【判断题】
在凝胶过滤层析中,分子直径比凝胶孔径小的分子,可以进入凝胶相内,延长了路径,向下移动的速度超过大分子。A.
正确
B.
错误
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举一反三
【单选题】When driving, we are ________ to fasten the seat belt for safety.
A.
compelling
B.
compelled
C.
to compel
D.
compel
【单选题】According to the passage, which of the following statements is NOT true?
A.
Both Clifford Brown and Max Roach are jazz players.
B.
Chess Records is a musical company.
C.
Dinah Washington had a straightforward personality.
D.
Dinah Washington was a versatile artist.
【简答题】From an early age, we are judged by how we behave under pressure. But is this fair? Not everyone ________ well under pressure. But unfortunately, for these people, many important things in our lives a...
【简答题】Task 2 Complete the following sentences with the proper form of the words or phrases given in brackets. 1 When driving, we are (compel) to fasten the seat belt for safety. 2 (fortunate), she has lost ...
【单选题】Which is true about sentence (G)?
A.
It uses the passive voice to focus information on city planners.
B.
It uses the passive voice to focus information on public transportation.
【单选题】Which is true about sentence (D)?
A.
It uses passive voice to focus the information on pedestrianization.
B.
It uses active voice to focus the information on business owners.
【简答题】If we are driving a car or crossing a street, we will stop when the traffic lights turn red. Why do we use red rather than other colors? As we know, scattering (散射) happens when light goes through the...
【单选题】Which of the following statement is NOT true?
A.
Irene went to Hong Kong three weeks ago.
B.
Irene did all the stuff her planned to do.
C.
Irene thought Hong Kong was very interesting.
D.
Irene wished she could be in Hong Kong much longer.
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