阿摩線上測驗
2. In eukaryotes, the nucleus is enclosed by a double membrane called the :
(A) cell membrane.
(B) nuclear envelope.
(C) nucleolus.
(D) nucleoplasm.
(E) nucleosome.
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統計： A(2), B(2), C(1), D(0), E(0) #2789651
統計： A(2), B(2), C(1), D(0), E(0) #2789651
