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【简答题】
（16分）某同学想通过下图装置（夹持装置已略去）实验，探究SO 2 与Na 2 O 2 反应的产物． Ⅰ．装置B的作用 ． 装置D的作用 ． Ⅱ．如何检验反应中是否有O 2 生成 ． Ⅲ．对C中固体产物提出如下假设： 假设1：只有Na 2 SO 3 假设2：只有Na 2 SO 4 假设3： ． （1）假设2的反应方程式为 ． （2）若Na 2 O 2 反应完全，为确定C中固体产物的成分，甲设计如下实验： 得出结论：产物是Na 2 SO 4 ． 该方案是否合理 （填“是”或“否”），理由是 ． （3）设计实验验证假设3：取少量C中固体产物于试管中，加入适量的蒸馏水溶解， ，则假设3成立．
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参考答案：
举一反三
【多选题】对于离散式生产类型,以下哪些表述是正确的?
A.
各零件的加工装配过程彼此是独立的
B.
产品是由许多零部件构成的
C.
整个产品的生产工艺是离散的
D.
机械制造、电子设备制造行业的生产过程均属这一类型
E.
加工装配型生产管理并不属于该种类型
查看完整题目与答案
【判断题】加工装配式生产是离散型生产
A.
正确
B.
错误
查看完整题目与答案
【单选题】When will an auditor express an opinion containing the phrase “except for”? ( )
A.
When the client refuses to provide for a probable income tax liability that is very material, or so material
B.
when there is a high degree of uncertainty associated with the client company’s future
C.
When he or she did not perform procedure sufficient to form an opinion on the valuation of accounts receivable which are material
D.
When the auditor is basing his or her opinion in part on the work done by another auditor
查看完整题目与答案
【单选题】When analyzing the various types of opinions that the auditor can issue,
A.
an adverse opinion must contain the phrase "except for" in the opinion paragraph.
B.
an adverse opinion can only be issued when there is a lack of knowledge by the auditor.
C.
a disclaimer of opinion can be issued for material or immaterial misstatements.
D.
a qualified opinion report can be used only when the auditor concludes that the overall
查看完整题目与答案
【简答题】When will an auditor express an opinion containing the phrase “except for”? ( )A. When the refuses to provide for a probable income tax liability that is very material, or so material B. whe...
查看完整题目与答案
【单选题】Which of the following statements is correct concerning an auditor's use of the work of a specialist?
A.
The auditor need not obtain an understanding of the methods and assumptions used by the specialist.
B.
The auditor may not use the work of a specialist in matters material to the fair presentation of the financial statements
C.
The reasonableness of the specialist's assumptions and their applications are strictly the auditor’s responsibility
D.
The work of a management specialist who has a contractual relationship with the client may be acceptable under certain circumstances
查看完整题目与答案
【单选题】为了获得原生苷,常用的提取方法是
A.
热水提取
B.
冷水提取
C.
乙醚提取
D.
酸水提取
查看完整题目与答案
【判断题】加工装配式生产是离散型生产
A.
正确
B.
错误
查看完整题目与答案
【单选题】为了获得原生苷,常用的提取方法是( )
A.
沸水提取
B.
冷水提取
C.
乙醚提取
D.
酸水提取
E.
三氯甲烷提取
查看完整题目与答案
【简答题】按生产工艺特征分类可以把各种生产过程分为工艺过程连续的流程生产型和工艺过程离散的加工装配型。采掘、冶炼和化学工业都是属于( )式的生产,机械制造、电子设备制造行业均属( )式生产。
查看完整题目与答案
相关题目：
【多选题】对于离散式生产类型,以下哪些表述是正确的?
A.
各零件的加工装配过程彼此是独立的
B.
产品是由许多零部件构成的
C.
整个产品的生产工艺是离散的
D.
机械制造、电子设备制造行业的生产过程均属这一类型
E.
加工装配型生产管理并不属于该种类型
查看完整题目与答案
【判断题】加工装配式生产是离散型生产
A.
正确
B.
错误
查看完整题目与答案
【单选题】When will an auditor express an opinion containing the phrase “except for”? ( )
A.
When the client refuses to provide for a probable income tax liability that is very material, or so material
B.
when there is a high degree of uncertainty associated with the client company’s future
C.
When he or she did not perform procedure sufficient to form an opinion on the valuation of accounts receivable which are material
D.
When the auditor is basing his or her opinion in part on the work done by another auditor
查看完整题目与答案
【单选题】When analyzing the various types of opinions that the auditor can issue,
A.
an adverse opinion must contain the phrase "except for" in the opinion paragraph.
B.
an adverse opinion can only be issued when there is a lack of knowledge by the auditor.
C.
a disclaimer of opinion can be issued for material or immaterial misstatements.
D.
a qualified opinion report can be used only when the auditor concludes that the overall
查看完整题目与答案
【简答题】When will an auditor express an opinion containing the phrase “except for”? ( )A. When the refuses to provide for a probable income tax liability that is very material, or so material B. whe...
查看完整题目与答案
【单选题】Which of the following statements is correct concerning an auditor's use of the work of a specialist?
A.
The auditor need not obtain an understanding of the methods and assumptions used by the specialist.
B.
The auditor may not use the work of a specialist in matters material to the fair presentation of the financial statements
C.
The reasonableness of the specialist's assumptions and their applications are strictly the auditor’s responsibility
D.
The work of a management specialist who has a contractual relationship with the client may be acceptable under certain circumstances
查看完整题目与答案
【单选题】为了获得原生苷,常用的提取方法是
A.
热水提取
B.
冷水提取
C.
乙醚提取
D.
酸水提取
查看完整题目与答案
【判断题】加工装配式生产是离散型生产
A.
正确
B.
错误
查看完整题目与答案
【单选题】为了获得原生苷,常用的提取方法是( )
A.
沸水提取
B.
冷水提取
C.
乙醚提取
D.
酸水提取
E.
三氯甲烷提取
查看完整题目与答案
【简答题】按生产工艺特征分类可以把各种生产过程分为工艺过程连续的流程生产型和工艺过程离散的加工装配型。采掘、冶炼和化学工业都是属于( )式的生产,机械制造、电子设备制造行业均属( )式生产。
查看完整题目与答案
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