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【简答题】
（1）下列物质中水溶液能导电但属于非电解质的有 （填序号）①乙醇 ②氨气 ③氯气 ④氯化钠 ⑤硫酸 ⑥干冰 ⑦BaSO 4 ⑧醋酸 ⑨氢氧化钠 ⑩CaO （2）某实验需要使用240ml 0.4mol/L CuSO 4 溶液，用胆矾配制该浓度溶液需要使用的仪器有托盘天平、烧杯、玻璃棒、 、 ；需要称量 克胆矾；若所称胆矾失去部分结晶水，则配制出的溶液浓度 。（填偏高、偏低或无影响） （3）是中国古代兵马俑和古代壁画中的一种颜料，其化学式是BaCuSi 2 O 6 ，请用氧化物的形式表示其组成： 。
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举一反三
【简答题】If no agreement for sharing income and losses exists, the law states that income and losses must be shared _________.
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【单选题】The existing law states that ______.
A.
convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence
B.
convictions can't be made on confessions alone and there should be a third party when taking statements from accused persons
C.
convictions can be made on confessions and a third party should be present when taking statements from accused persons
D.
convictions can't be made on confessions alone and the statements taken by police officers from accused persons are valid legal evidence
查看完整题目与答案
【单选题】Gresham's Law states that
A.
bad money drives good   money out of circulation.
B.
good money drives bad   money out of circulation.
C.
if a country bases its currency on both gold and silver, at an official exchange rate, it will be the more valuable of the two metals that circulate.
D.
none of the above.
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【单选题】The law KCL states that( )
A.
The algebraic sum of the current around any closed path is zero.
B.
The algebraic sum of the currents entering any node is zero.
C.
The algebraic sum of the voltage around any closed path is zero.
D.
The algebraic sum of the voltage entering any node is zero.
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【单选题】血红蛋白测定其规定标准为：( )。
A.
男性≥1.051，女性≥1.051
B.
男性≥1.052，女性≥1.051
C.
男性≥1.052，女性≥1.052
D.
男性≥1.050，女性≥1.051
E.
男性≥1.053，女性≥1.051
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【单选题】The law states that all Walleyes under 17 inches must be released back into the water.
A.
Fact
B.
Opinion
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【单选题】温度过高可使药品发生以下变化( )。
A.
致使药品变质
B.
致使剂型破坏
C.
促使药品会发
D.
以上都是
查看完整题目与答案
【单选题】The existing law states that ______.
A.
convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence
B.
convictions can’t be made on confessions alone and there should be a third party when taking statements from accused persons
C.
convictions can be made on confessions and a third party should be present when taking statements from accused per sons
D.
convictions can’t be made on confession alone and the statements taken by police officers from accused persons are valid legal evidence
查看完整题目与答案
【单选题】盖板梳棉机上第一落杂区长度与梳棉机总落棉率的关系是()。
A.
第一落杂区长度越小，梳棉机总落棉率越大
B.
第一落杂区长度越大，梳棉机总落棉率越大
C.
第一落杂区长度与梳棉机总落棉率的多少无关
D.
上面三种关系都不对
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【单选题】Kirchhoff's current law states that
A.
the sum of the currents entering a junction must equal zero
B.
the total current entering a given junction is constant, even with changes in supply voltage
C.
the sum of the currents entering a junction must equal the sum of the currents leaving the junction
D.
the sum of the currents around a closed loop is zero
查看完整题目与答案
相关题目：
【简答题】If no agreement for sharing income and losses exists, the law states that income and losses must be shared _________.
查看完整题目与答案
【单选题】The existing law states that ______.
A.
convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence
B.
convictions can't be made on confessions alone and there should be a third party when taking statements from accused persons
C.
convictions can be made on confessions and a third party should be present when taking statements from accused persons
D.
convictions can't be made on confessions alone and the statements taken by police officers from accused persons are valid legal evidence
查看完整题目与答案
【单选题】Gresham's Law states that
A.
bad money drives good   money out of circulation.
B.
good money drives bad   money out of circulation.
C.
if a country bases its currency on both gold and silver, at an official exchange rate, it will be the more valuable of the two metals that circulate.
D.
none of the above.
查看完整题目与答案
【单选题】The law KCL states that( )
A.
The algebraic sum of the current around any closed path is zero.
B.
The algebraic sum of the currents entering any node is zero.
C.
The algebraic sum of the voltage around any closed path is zero.
D.
The algebraic sum of the voltage entering any node is zero.
查看完整题目与答案
【单选题】血红蛋白测定其规定标准为：( )。
A.
男性≥1.051，女性≥1.051
B.
男性≥1.052，女性≥1.051
C.
男性≥1.052，女性≥1.052
D.
男性≥1.050，女性≥1.051
E.
男性≥1.053，女性≥1.051
查看完整题目与答案
【单选题】The law states that all Walleyes under 17 inches must be released back into the water.
A.
Fact
B.
Opinion
查看完整题目与答案
【单选题】温度过高可使药品发生以下变化( )。
A.
致使药品变质
B.
致使剂型破坏
C.
促使药品会发
D.
以上都是
查看完整题目与答案
【单选题】The existing law states that ______.
A.
convictions can be made on confessions and statements taken by police officers from accused persons are valid legal evidence
B.
convictions can’t be made on confessions alone and there should be a third party when taking statements from accused persons
C.
convictions can be made on confessions and a third party should be present when taking statements from accused per sons
D.
convictions can’t be made on confession alone and the statements taken by police officers from accused persons are valid legal evidence
查看完整题目与答案
【单选题】盖板梳棉机上第一落杂区长度与梳棉机总落棉率的关系是()。
A.
第一落杂区长度越小，梳棉机总落棉率越大
B.
第一落杂区长度越大，梳棉机总落棉率越大
C.
第一落杂区长度与梳棉机总落棉率的多少无关
D.
上面三种关系都不对
查看完整题目与答案
【单选题】Kirchhoff's current law states that
A.
the sum of the currents entering a junction must equal zero
B.
the total current entering a given junction is constant, even with changes in supply voltage
C.
the sum of the currents entering a junction must equal the sum of the currents leaving the junction
D.
the sum of the currents around a closed loop is zero
查看完整题目与答案