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【单选题】
下列各组分子离子中，不属于共轭关系的是（）。A.
HCl－Cl -
B.
H 2 CO 3 －CO 3 2－
C.
H 2 CO 3 －HCO 3 2－
D.
NH 4 + －NH 3
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反馈参考答案：
举一反三
【多选题】第十一章15.县级以上地方人民政府对发生在本行政区域内的食品安全事故,未及时组织协调有关部门开展有效处置,造成不良影响或者损失,或者隐瞒、谎报、缓报食品安全事故的,对直接负责的主管人员和其他直接责任人员()
A.
给予记过处分
B.
情节严重的，给予降级和撤职处分
C.
情节严重的，给予降级或撤职处分
D.
情节严重的，给予开除处分。
E.
造成严重后果的直接负责的主管人员和其他直接责任人员，还应当。
【单选题】In Bulgaria __________means “No” while ________ of a head means “Yes”.
A.
a nod…a shake
B.
a shake…a nod
C.
a nod …a nod
D.
a shake…a shake
【单选题】企业利用现有设备可生产甲、乙两种产品，甲、乙两种产品的变动生产成本差额为6000元／月，预计销售收入差额为5900元／月，则该企业应生产（）产品。
A.
甲
B.
乙
C.
甲、乙均行
D.
甲、乙均不行
【简答题】The idea of what shaking the head means is not always the same in different countries. Maybe some visitors would be surprised when they first came to India. When they talked to an Indian,he would ofte...
【单选题】阅读材料，回答题。 Even a child knows that nodding head means "Yes". But some people would probably____51____ when they first came to India. When they talked to an Indian, he would often shake hishead. They mi...
A.
puzzled
B.
be puzzled
C.
puzzle
D.
be puzzling
【简答题】What shaking the head means is not always the same in different countries.Maybe some visitors would be surprised when they first come to India.When they talk to an Indian,they would find he would ofte...
【简答题】The idea of what shaking the head means is not always the same in different countries. Maybe some visitors would be surprised when they first come to India. When they talk to an Indian, they would fin...
【单选题】企业利用现有设备可生产甲、乙两种产品，甲、乙两种产品的变动生产成本差额为6 000元／月，预计销售收入差额为5 900元／月，则该企业应生产( )产品。
A.
甲
B.
乙
C.
甲、乙均可
D.
甲、乙均不行
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