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【单选题】
有关原核生物转录延长阶段,叙述不正确的是A.
RNA聚合酶全酶催化此过程
B.
RNA聚合酶与模板结合松弛
C.
转录过程未终止时即开始翻译
D.
σ 因子从转录起始复合物上脱落
E.
RNA聚合酶与模板的结合无特异性
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【单选题】Mahalia Jackson, _________ combined powerful vitality with great dignity, was one of the best-known gospel singers in the United States.
A.
it was her singing
B.
which songs
C.
whose singing
D.
who sang
【单选题】Mahalia Jackson, _______ combined powerful vitality with great dignity, was one of the best-known gospel singers in the United Stated.
A.
it was her singing
B.
which songs
C.
who sang
D.
whose singing
【单选题】Mahalia Jackson, ______ combined powerful vitality with great dignity, was one of the best-known gospel singers in the United States.
A.
it was her singing
B.
which songs
C.
who sang
D.
whose singing
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