皮皮学，免费搜题
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【单选题】
细菌细胞内没有的结构是 ( ) 。A.
细胞壁
B.
细胞膜
C.
细胞核
D.
DNA
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皮皮学刷刷变学霸
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【单选题】（）是一种假设随着人的发展与生活条件的变化，人们会因人、因事、因地而不断变化出多种多样的需要，并且由这些需要形成了行为动机的多样化，掺杂着善与恶的混合的一种有关人性的理论。
A.
复杂人
B.
社会人
C.
经济人
D.
自我实现人
【简答题】什么是柴油的发火性?发火性的好坏对发动机工作有何影响?
【简答题】The manager of a department store is investigating the relation between the number of salespersons in duty during a week, X, and the value of merchandise lost (shrinkage) per week, Y in $'000. The in...
【简答题】什么是柴油的发火性?发火性的好坏对发动机工作有何影响?
【简答题】Last month the manager of a jewelry shop (珠宝店) received a letter. As he was very busy then, the letter lay on his desk till tea-time. He opened it and a 10-pound note(票) fell out onto the desk. Within...
【简答题】什么是柴油的发火性?发火性的好坏对发动机工作有何影响?
【单选题】The manager lost his _____ just because his secretary was ten minutes late.
A.
mood
B.
temper
C.
mind
D.
passion
【简答题】Last month the manager（经理） of a jewelry shop ( 珠宝店) received a letter. As he was very busy then, the letter lay on his desk till tea-time. He opened it and a 10-pound note(票 ) fell out onto the desk. ...
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