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【多选题】
在产品设计中合理运用线形表达产品特点的有( )。A.
运用的直线和饱满的弧面交替表达微电子产品的精密感。
B.
采用刚毅的直线表达座椅。
C.
用直挺切面、有机的弧面、吻合的手感曲面交叉表达机械工具的精密构造。
D.
家用轿车的现代时速感可以用线面的流畅、主体面的多变线来表达。
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【简答题】我国对无船承运人的管理实行_____和______ 制度。
【单选题】That is the only thing __I bought from the supermarket.
A.
which
B.
that
C.
what
D.
in which
【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】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】遗传密码(genetic codon)
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