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【多选题】
俄罗斯人的起源是（）。A.
南斯拉夫人
B.
东斯拉夫人
C.
斯拉夫人
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【单选题】Compared with genetic engineering of food crops, genetic engineering of trees _____.
A.
began much later
B.
has developed more slowly
C.
is less useful
D.
is less controversial
【单选题】There are_____ people in the supermarket .I t is so crowded.
A.
hundreds
B.
hundreds of
C.
hundred of
D.
hundred
【单选题】The unity of the genetic code indicates( )
A.
The genetic code of all organisms is the same
B.
The nuclear genetic code of all organisms is the same
C.
The evolutionary process, the genetic code does not change
D.
All genetic information is regulated by the same factor
【单选题】Where is the supermarket?
A.
It's next to the bookstore.
B.
You can buy fruits here.
C.
The supermarket is very large.
D.
I don't like seafood.
【单选题】The genetic disorders are caused mainly by the mutations in a single gene, and their inheritances follow classical MENDELIAN inheritance. Then these genetic disorders are called
A.
single -gene disorders
B.
multifactorial genetic disorders
C.
chromosomal genetic disorders
D.
mitochondrial genetic disorders
【简答题】I was shopping in the supermarket when I heard a young voice boom from across the aisle. “Mom, come here! There’s this lady here my size!” The mother rushed to a boy she called Mickey; then she turned...
【简答题】用所给词的正确形式填空。 1. I enjoy ______(listen) to music. 2.The supermarket is on the ________(three) floor. 3. I like spring ______(well) than summer. 4. We enjoyed ________(oneself) last Sunday. 5. We are ex...
【单选题】There are_____ people in the supermarket .I t is so crowded.
A.
hundred
B.
hundreds
C.
hundreds of
D.
hundred of
【简答题】什么是 基因工程制药( genetic engineering pharmaceutics ) 。
【简答题】遗传密码(genetic codon)
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