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【简答题】
以下属于内容型激励理论的有哪些? A、需求层次理论 B、奥德弗的ERG理论 C、伯格的双因素理论 D、期望理论 E、X理论与Y理论
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皮皮学刷刷变学霸
举一反三
【单选题】The main purpose of the text is to______.
A.
convince the reader that vaccines are not as safe as many think
B.
educate the reader on how vaccines are used and some of their dangers
C.
educate the reader on the circumstances that would neccesitate widespread vaccinations
D.
present the method by which vaccines are used through the case of the smallpox vaccine
【简答题】These vaccines can ________specific responses
【简答题】刀具材料的常温硬度应在______以上。
【单选题】Which one of the following statements describes an advantage of killed vaccines over attenuated live vaccines ?
A.
killed vaccines induce a broader range of immune responses than do attenuated live vaccines
B.
killed vaccines more closely mimic natural infections than do attenuated live vaccines
C.
killed vaccines pose no risk that vaccine might be transmitted to susceptible contacts
D.
killed vaccines are efficacious against respiratory infections because they induce good mucosal immunity
E.
none of the above is right
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