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【单选题】
读“雨林生态系统的养分循环示意图”,回答3—4题。 雨林系统中最主要也是最关键的部位是图中的( )A.
B.
C.
D.
D
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举一反三
【单选题】The light in the room wasn’t _______for me to read.
A.
enough bright
B.
brightly enough
C.
enough brightly
D.
bright enough
【单选题】某一核酸分子,碱基中有52%为A,该核酸分子是
A.
DNA分子
B.
单链DNA分子或RNA分子
C.
DNA与RNA形成的杂化双链
D.
双链DNA分子或RNA分子
E.
各选项均有可能
【单选题】In a study of the effect of color on productivity, 50 of 100 factory workers were moved from their drab workroom to a brightly colored workroom. Both these workers and the 50 who remained in the drab ...
A.
The 50 workers moved to the brightly colored room performed precisely the same manufacturing task as the workers who remained in the drab workroom.
B.
The drab workroom was designed to provide adequate space for at most 65 workers.
C.
The 50 workers who moved to the brightly colored workroom were matched as closely as possible in age and level of training to the 50 workers who remained in the drab workroom.
D.
Nearly all the workers in both groups had volunteered to move to the brightly colored workroom.
E.
Many of the workers who moved to the brightly colored workroom reported that they liked the drab workroom as well as or better than they liked the brightly colored workroom.
【简答题】核酸分子杂交名词解释
相关题目：
【单选题】某一核酸分子,碱基中有52%为A,该核酸分子是
A.
DNA分子
B.
单链DNA分子或RNA分子
C.
DNA与RNA形成的杂化双链
D.
双链DNA分子或RNA分子
E.
各选项均有可能
参考解析：
知识点：
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