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【单选题】
气固相催化平行反应,内扩散的存在会使高级数反应产物的选择性()。A.
提高
B.
不变
C.
下降
D.
无关联
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举一反三
【单选题】Which of the following statements about Larry can be inferred?
A.
Larry was an idealistic dreamer.
B.
. Larry had a fine sense of humor.
C.
Larry was going to be a great movie star.
D.
Larry was broke when he met the film director.
【单选题】What is probably true about Larry?
A.
Larry usually helps others to prepare for the test.
B.
Larry surprised us with his grade.
C.
Larry knew how to solve the mystery.
【简答题】. Larry Walters’boyhood dream was to fly. After finishing school, Larry joined the U.S. Air Force, but was refused from pilot-training school because of poor eyesight. However, his dream remained. Lar...
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