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【简答题】
(1) 如图是研究光电效应的实验装置 . 用一定频率的光照射阴极 K, 当滑片 P 处于图示位置时 , 电流表的示数不为零 . 为使电流表示数减小 . 下列办法可行的是 . A. 将滑片 P 向右移动 B. 减小入射光的强度 C. 换用电动势更大的电源 D. 将电源的正、负极对调 (2) 质子与中子发生核反应 , 生成氘核 , 放出能量 , 写出核反应方程 . 若质子的质量为 m 1 , 中子的质量为 m 2 , 氘核的质量为 m 3 , 真空中光速为 c , 则氘核的比结合能为 . (3) 如图所示 , 一辆炮车静止在水平地面上 , 炮仰起与水平方向的角度为 θ , 每发炮弹的质量为 m , 发射前炮车和炮弹的总质量为 M. 现发射一发炮弹 , 短的时间 t , 炮弹离开炮相对地面的速度为 v , 若忽略此过程地面对炮车的阻力 , 求 : 1 炮弹离开炮 , 炮车的速度大小 . 2 在时间 t 内 , 炮车所受合力平均值的大小 .
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举一反三
【判断题】Common words usually do not apply to business contracts or agreements.
A.
正确
B.
错误
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【单选题】Why are ethical rules more difficult to apply today?
A.
Because business is no longer a matter of interpersonal act.
B.
Because the movement of capital has become the result of all activities.
C.
Because people are not knowledgeable enough to make sensible judgment.
D.
Because making profits has become dominant in doing all businesses.
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【判断题】用商品X代替商品Y的边际替代率等于3意味着,1单位商品X和3单位商品Y具有同样的总效用。
A.
正确
B.
错误
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【单选题】Why is the man talking to the woman?
A.
To return some business books.
B.
To apply for a new library card.
C.
To check out some books from the library.
D.
To find out where the art books are located.
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【单选题】A copy of the agreement for ________ the venue is required to apply to start the business.
A.
hitting
B.
interferring
C.
swinging
D.
leasing
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【多选题】开展 “ 不忘初心、牢记使命 ” 主题教育的具体目标是什么?
A.
理论学习有收获 思想政治受洗礼
B.
干事创业敢担当
C.
为民服务解难题
D.
清正廉洁作表率
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【判断题】Future business professionals need to be able to apply information technology to business.
A.
正确
B.
错误
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【单选题】( ) must understand how to apply technology to solve business problems.
A.
Project Sponsor
B.
Systems Analyst
C.
Programmer
D.
Approval Committee
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【单选题】知名度高的明星和模特儿是美妆业最爱的代言人，与下列哪种消费者行为理论最“不”相关？
A.
两因素理论（Two-FactorTheory）
B.
古典制约（ClassicalConditioning）
C.
选择性注意（SelectiveAttention）
D.
参考团体（ReferenceGroups）
查看完整题目与答案
【判断题】To apply to business ethics means businesses should pay more attention to their one-on-one dealings with a single customer.
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【判断题】Common words usually do not apply to business contracts or agreements.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Why are ethical rules more difficult to apply today?
A.
Because business is no longer a matter of interpersonal act.
B.
Because the movement of capital has become the result of all activities.
C.
Because people are not knowledgeable enough to make sensible judgment.
D.
Because making profits has become dominant in doing all businesses.
查看完整题目与答案
【判断题】用商品X代替商品Y的边际替代率等于3意味着,1单位商品X和3单位商品Y具有同样的总效用。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Why is the man talking to the woman?
A.
To return some business books.
B.
To apply for a new library card.
C.
To check out some books from the library.
D.
To find out where the art books are located.
查看完整题目与答案
【单选题】A copy of the agreement for ________ the venue is required to apply to start the business.
A.
hitting
B.
interferring
C.
swinging
D.
leasing
查看完整题目与答案
【多选题】开展 “ 不忘初心、牢记使命 ” 主题教育的具体目标是什么?
A.
理论学习有收获 思想政治受洗礼
B.
干事创业敢担当
C.
为民服务解难题
D.
清正廉洁作表率
查看完整题目与答案
【判断题】Future business professionals need to be able to apply information technology to business.
A.
正确
B.
错误
查看完整题目与答案
【单选题】( ) must understand how to apply technology to solve business problems.
A.
Project Sponsor
B.
Systems Analyst
C.
Programmer
D.
Approval Committee
查看完整题目与答案
【单选题】知名度高的明星和模特儿是美妆业最爱的代言人，与下列哪种消费者行为理论最“不”相关？
A.
两因素理论（Two-FactorTheory）
B.
古典制约（ClassicalConditioning）
C.
选择性注意（SelectiveAttention）
D.
参考团体（ReferenceGroups）
查看完整题目与答案
【判断题】To apply to business ethics means businesses should pay more attention to their one-on-one dealings with a single customer.
A.
正确
B.
错误
查看完整题目与答案