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【单选题】
过敏性是
A.
药物引起的反应与个人体质有关,与用药剂量无关
B.
等量药物引起和一般病人相似但强度更高的药理效应或毒性
C.
用药一段时间后,病人对药物产生精神上的依赖,中断用药后,会出现主观上的不适
D.
长期用药后,产生了生理上的依赖,停药后出现了戒断症状
E.
长期用药后,需要逐渐增加用量才能保持药效不减
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【单选题】As we all know, _________ exercise will help to strengthen the heart and improve circulation of the blood.
A.
normal
B.
average
C.
regular
D.
ordinary
【单选题】某一个操作系统对内存的管理采用页式存储管理方法,所划分的页面大小是
A.
要依据内存大小而定
B.
必须相同
C.
要依据 CPU 的地址结构
D.
要依据外存和内存的大小而定
【单选题】某个操作系统对内存的管理采用页式存储管理方法,所划分的页面大小()。
A.
要根据CPU的地址结构
B.
要依据外存和内存的大小而定
C.
必须相同
D.
要根据内存大小而定
【单选题】The company's training plan was designed to help the employees to improve their work habits and ______.
A.
proficiency
B.
sufficiency
C.
insufficiency
D.
efficiency
【单选题】The construction package is meant to ______ .
A.
help build more houses
B.
help improve the country's economy
C.
help more children to go to school
D.
help more young people to get education
【简答题】已知点A(2a+3b,-2)和点A′(-1,3a+b). (1)若点A和A′关于y轴对称,则a+b=______; (2)若点A和A′关于x轴对称,则a+b=______.
【单选题】His advice couldn’t help ____ her health, so she couldn’t help ____.
A.
improve , cry
B.
improving, cry
C.
improve, crying
D.
improving, crying
【简答题】His efforts to improve the sales of this product have been very (help) ______.
【简答题】A project ________ great significance is to be discussed, which will help to improve the local people's living conditions.
【简答题】Genetically modified crops can help to improve nutrient contents and farmingproductivity.
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