两带电量分别为q和-q的点电荷放在x轴上,相距为L,能正确反映两电荷连线上场强大

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问题:

两带电量分别为q和-q的点电荷放在x轴上,相距为L,能正确反映两电荷连线上场强大小E与x关系的是图[     ]

A.

B.

C.

D.

考点:电场强度的叠加
题型:不定项选择

A 15-year-old female with a urinary tract infection is admitted to the facility. She tells the nurse she hopes she’s pregnant. Which of the following would be the best response by the nurse()

A. "Does your mother know about this"

B. "Tell me what pregnancy would mean to you. "

C. "Congratulations. Does the baby’s father know"

D. "I hope you aren’t pregnant; you’re too young. "

题型:不定项选择

若某项目净现值为零,则表明此项目( )。

A.盈利能力为行业的最低水平

B.利润为零

C.盈利能力恰好达到行业的平均水平

D.盈亏平衡

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归纳中国民族工业的特点。

______________________________________________________________________

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简述组织对人力资源投资收益分析的一般程序。

题型:不定项选择

影响证券市场需求的政策因素不包括( )。

A.市场准入政策
B.融资融券政策
C.金融监管政策
D.资产重组政策

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