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（共13分）（1）右图甲中装置甲是某种不溶于水的气体X的发生装置和收集装置（必要时可以加热），所用的试剂从下列试剂中选取2-3种：硫化亚铁、二氧化锰、铜屑、氯化铵、稀氨水、大理石、浓硫酸、浓硝酸、稀硝酸、蒸馏水。 回答下列问题： ①气体X的分子式是 。 ②所选择的药品a是 ，b是 ， c是 。 ③下列装置，能代替装置甲的简易装置是 （填“乙”或“丙”） ④请写出在试管a中所发生反应的化学方程式 。 ⑤从反应开始到反应结束，预期在试管a中可观察到的气体的实验现象有哪些，请依次逐步写出 ； ； （2）在进行研究性学习的过程中，学生发现等质量的铜片分别与等质量均过量的浓硝酸或稀硝酸反应，所得到溶液前者呈绿色，后者呈蓝色，针对这种现象，学生进行了讨论，出现两种意见，一种认为：Cu 2 ＋ 浓度差异引起了这种现象，你认为 （填“正确”或“不正确”），依据是： ； 另一种意见是：溶液呈绿色可能是Cu 2 ＋ 与NO 2 混合的结果，并用实验进行了证明，请简述实验方案与实验现象： 。
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A.
用解码器中的清除故障码程序清码
B.
取下电子控制系统的熔丝约30s
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直接拆下蓄电池的正极线30s
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drastic
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A.
have discovered
B.
discovered
C.
been discovered
D.
discover
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【单选题】In spite of the efforts to improve housing condition, the number of people living in shanty towns will increase because ______.
A.
houses in shanty towns are cheap
B.
shanty towns could provide people with minimum comfort
C.
no policy will be capable of stopping or changing the present immigrant tendency from the rural areas to the cities in the Third World
D.
the Third World population is growing at a rate of about 80 million people per year
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【单选题】Forty years ago no one was concerned about the health of the ocean, in spite of the fact that many fisheries were being over-harvested, toxic wastes were being dumped in the sea, and developers were b...
A.
the ocean was immune to any pollution then
B.
they didn't know what would come of if the ocean was deadly disrupted
C.
there was no computer then
D.
there wasn't any problem with the ocean at that time
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【多选题】下列需要备案的重特大案件是（）
A.
非法拆解、回收、拼装机动车案值在10万元以上的案件
B.
侵犯注册商标专用权案值个人在8万元以上、单位在40万元以上的案件，或者侵犯驰名商标的案件
C.
暴力抗法案件
D.
案值达10万元的合同欺诈案件
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【多选题】对列车需要拆解的是?
A.
大修
B.
定修
C.
双月检
D.
架修
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【单选题】Forty years ago no one was concerned about the health of the ocean, in spite of the fact that many fisheries were being over harvested, toxic wastes were being dumped in the sea, and developers were b...
A.
the ocean was immune to any pollution then
B.
they didn't know what would come of if the ocean was deadly disrupted
C.
there was no computer then
D.
there wasn't any problem with ocean at that time
查看完整题目与答案
【单选题】一个机床操作工把大量的机油洒在他机床周围的地面上。车间主任叫操作工把洒掉的机油清扫干净，操作工拒绝执行，理由是工作说明书里并没有包括清扫的条文。车间主任顾不上去查工作说明书上的原文，就找来一名服务工做清扫。但服务工同样拒绝，他的理由是工作说明书里也没有包括这一类工作。车间主任威胁说要把他解雇，因为这种服务工是分配到车间来做杂务的临时工。服务工勉强同意，但是干完之后立即向公司投诉。  有关人员看了...
A.
要根据实际情况来进行工作分析和评价，并制定工作说明书
B.
把操作工、服务工和勤杂工的岗位职责进一步明确
C.
要求员工必须无条件地服从领导
D.
该公司要注意培育和发挥团队精神
查看完整题目与答案
【单选题】纳税人取得的全年一次性奖金单独作为一个月( )计算纳税，由扣缴义务人在发放时代扣代缴。
A.
工资薪金所得
B.
偶然收入所得
C.
其他收入所得
D.
额外收入所得
查看完整题目与答案
相关题目：
【多选题】汽车故障排除后,需要清除故障码,下列操作方法中正确的是?
A.
用解码器中的清除故障码程序清码
B.
取下电子控制系统的熔丝约30s
C.
直接拆下蓄电池的负极搭铁线30s
D.
直接拆下蓄电池的正极线30s
查看完整题目与答案
【单选题】The customer is still ______ about the functions of the vacuum cleaner in spite of the salesman's repetitive assurance.
A.
vicious
B.
cynical
C.
drastic
D.
skeptical
查看完整题目与答案
【单选题】The cause of this kind of flu hasn ’t yet ____ in spite of the efforts of the medical researchers.
A.
have discovered
B.
discovered
C.
been discovered
D.
discover
查看完整题目与答案
【单选题】In spite of the efforts to improve housing condition, the number of people living in shanty towns will increase because ______.
A.
houses in shanty towns are cheap
B.
shanty towns could provide people with minimum comfort
C.
no policy will be capable of stopping or changing the present immigrant tendency from the rural areas to the cities in the Third World
D.
the Third World population is growing at a rate of about 80 million people per year
查看完整题目与答案
【单选题】Forty years ago no one was concerned about the health of the ocean, in spite of the fact that many fisheries were being over-harvested, toxic wastes were being dumped in the sea, and developers were b...
A.
the ocean was immune to any pollution then
B.
they didn't know what would come of if the ocean was deadly disrupted
C.
there was no computer then
D.
there wasn't any problem with the ocean at that time
查看完整题目与答案
【多选题】下列需要备案的重特大案件是（）
A.
非法拆解、回收、拼装机动车案值在10万元以上的案件
B.
侵犯注册商标专用权案值个人在8万元以上、单位在40万元以上的案件，或者侵犯驰名商标的案件
C.
暴力抗法案件
D.
案值达10万元的合同欺诈案件
查看完整题目与答案
【多选题】对列车需要拆解的是?
A.
大修
B.
定修
C.
双月检
D.
架修
查看完整题目与答案
【单选题】Forty years ago no one was concerned about the health of the ocean, in spite of the fact that many fisheries were being over harvested, toxic wastes were being dumped in the sea, and developers were b...
A.
the ocean was immune to any pollution then
B.
they didn't know what would come of if the ocean was deadly disrupted
C.
there was no computer then
D.
there wasn't any problem with ocean at that time
查看完整题目与答案
【单选题】一个机床操作工把大量的机油洒在他机床周围的地面上。车间主任叫操作工把洒掉的机油清扫干净，操作工拒绝执行，理由是工作说明书里并没有包括清扫的条文。车间主任顾不上去查工作说明书上的原文，就找来一名服务工做清扫。但服务工同样拒绝，他的理由是工作说明书里也没有包括这一类工作。车间主任威胁说要把他解雇，因为这种服务工是分配到车间来做杂务的临时工。服务工勉强同意，但是干完之后立即向公司投诉。  有关人员看了...
A.
要根据实际情况来进行工作分析和评价，并制定工作说明书
B.
把操作工、服务工和勤杂工的岗位职责进一步明确
C.
要求员工必须无条件地服从领导
D.
该公司要注意培育和发挥团队精神
查看完整题目与答案
【单选题】纳税人取得的全年一次性奖金单独作为一个月( )计算纳税，由扣缴义务人在发放时代扣代缴。
A.
工资薪金所得
B.
偶然收入所得
C.
其他收入所得
D.
额外收入所得
查看完整题目与答案
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