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【单选题】
mRNA是指A.
信使RNA
B.
转运RNA
C.
RNA
D.
核蛋白体RNA
E.
病毒RNA
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【判断题】The purpose of the logical design is to design a model which can be appropriate to certain model, suppose to relational database, the logical design is aimed to design a relational model.
A.
正确
B.
错误
【单选题】某商品由上海港海运至美国洛杉矶港(Los Angeles,US),托运人应查询下列)()航线的船期表和运价表。
A.
远东—北美西岸
B.
远东—北美东岸
C.
远东—欧洲
D.
远东—地中海
【单选题】There are times when one wants to be surrounded by people; there are also times when one needs solitude .
A.
rest
B.
the state of being alone
C.
a lot of friends
D.
company
【简答题】Why need simplify the logical function? How many expression ways of the st form for the same Boolean function? Which one is the normal expression?
【简答题】____ meaning is the logical, cognitive or denotative content of a word, which can be found in the dictionary.
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