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【单选题】
餐饮从业人员烹制的菜点和提供的服务，其质量的好坏，决定着企业的效益和()。A.
费用
B.
成本
C.
信誉
D.
福利
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举一反三
【单选题】A lysogenic bacterium ( ).
A.
Carries a prophage
B.
Causes lysis of other bacteria on contact.
C.
Cannot support the replication of a virulent phage
D.
Is often a human pathogen
E.
Is usually not capable of conjugal genetic transfer
【单选题】Schools should be lively places where individuals are encouraged to _____ to their greatest potential.
A.
accelerate
B.
improve
C.
perform
D.
develop
【多选题】What are wrong statements with respect to lysogen and prophage.
A.
If there is only growth of few lysogens, the E. coli lawn would be turbid
B.
The integrated phage is called as lysogen
C.
The infected bacterial cell is called a prophage
D.
If lysogens won’t be formed, the plaques won’t be clear
【单选题】Pieces of plasmid or bacterial chromosomal DNA may be mistakenly packaged into the capsid (head) of a bacterial virus. Assuming that no prophage state has existed in the phage production, what is the ...
A.
Conjugation
B.
Lysogeny
C.
Generalized transduction
D.
Specialized transduction
E.
Transformation
【单选题】Choose the correct statement with respect to lysogen and prophage.
A.
The integrated phage is called as lysogen
B.
The infected bacterial cell is called a prophage
C.
If there is only growth of few lysogens, the E. coli lawn would be turbid
D.
If lysogens won’t be formed, the plaques won’t be clear
【简答题】A．offices B．schools C．cities D．places
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