皮皮学，免费搜题
登录
搜题
【简答题】
根据下列实验装置图回答问题： （1）写出标有序号①的仪器名称： _____________； （2）在实验室中用过氧化氢溶液和二氧化锰混合制取氧气时，其中二氧化锰起________作用;若用装置A制备氧气，发生反应的化学方程式为_______________________________； （3）实验室制取一瓶二氧化碳气体，应选择的装置为__________（填写装置的字母代号），所发生的化学反应的方程式为 。制取时，不能用浓度较大的盐酸，是因为__________________。 （4）假如你收集了一集气瓶的空气样品，如F装置，现需将其转移到集气瓶③中储存起来以备后续实验用（瓶②比瓶③容积大），请你设计一个转移气体的方案 。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】下面关于审计法规定的法律责任的表述中，错误的是（）。
A.
审计法规定的法律责任的内容包括两个方面：一是违反审计法的法律责任；二是违反国家规定的财政收支、财务收支的法律责任
B.
被审计单位有违反审计法规定的行为，由审计机关责令改正，可以通报批评，给予警告
C.
审计机关认为被审计单位有违反审计法规定的行为，可以直接对负责的主管人员和其他直接责任人员给予处分
D.
审计人员滥用职权、徇私舞弊、玩忽职守或者泄露所知悉的国家秘密、商业秘密的，依法给予处分；构成犯罪的，依法追究刑事责任
查看完整题目与答案
【单选题】_______ is NOT included in the factors used in analyzing vowels。
A.
Position of the tongue
B.
Shape of lips
C.
Openness of the mouth
D.
Openness of the vocal cords
查看完整题目与答案
【判断题】审计机关有权对被审计单位有关责任人员给予行政或者纪律处分。
A.
正确
B.
错误
查看完整题目与答案
【单选题】审计机关对有违反审计法规定,违反国家财政、财务收支行为的被审计单位,负有直接责任的主管人员和其他直接责任人员,依法应当予以行政处分的,有权给予行政处分。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】sy22-7PN结正向压降温度特性实验中,甲组同学选择控温电流为0.2A,乙组同学选择0.3A,丙组为0.4A,丁组为0.5A,实验效果较好的是( )
A.
甲组
B.
乙组
C.
丙组
D.
丁组
查看完整题目与答案
【单选题】In the specific factors model, the effects of trade on welfare are _____for mobile factors, ____for fixed factors used to produce the exported good, and _____for fixed factors used to produce the impo...
A.
positive; positive; positive
B.
ambiguous; negative; positive
C.
positive; ambiguous; ambiguous
D.
negative; ambiguous; ambiguous
E.
ambiguous; positive; negative
查看完整题目与答案
【单选题】According to tile passage, scientists used isotopes from the water of the ice core to determine which of following?
A.
The amount of air that had bubbled to the surface since the ice had formed
B.
The temperature of the atmosphere when the ice was formed
C.
The date at which water had become locked in the glacier
D.
The rate at which water had been frozen in the glacier
查看完整题目与答案
【单选题】Project cash reserves are often used for adjustment in escalation factors which may be beyond the control of the project manager. Other than possibly financing (interest) costs and taxes, the three mo...
A.
. Overhead rates, labor rates and material costs.
B.
. Overhead rates, schedule slippages, and rework.
C.
. Rework, cost-of-living adjustments, and overtime.
D.
. Material costs, shipping cost, and scope changes.
E.
. Labor rates, material costs, and cost reporting.
查看完整题目与答案
【单选题】In the specific factors model, the effects of trade on welfare are ________ for mobile factors, ________ for fixed factors used to produce the exported good, and ________ for fixed factors used to pro...
A.
ambiguous; positive; negative
B.
ambiguous; negative; positive
C.
positive; ambiguous; ambiguous
D.
negative; ambiguous; ambiguous
E.
positive; positive; positive
查看完整题目与答案
【单选题】In the specific factors model, the effects of trade on welfare are ________ for mobile factors, ________ for fixed factors used to produce the exported good, and ________ for fixed factors used to pro...
A.
ambiguous; positive; negative
B.
positive; positive; positive
C.
ambiguous; negative; positive
D.
positive; ambiguous; ambiguous
查看完整题目与答案
相关题目：
【单选题】下面关于审计法规定的法律责任的表述中，错误的是（）。
A.
审计法规定的法律责任的内容包括两个方面：一是违反审计法的法律责任；二是违反国家规定的财政收支、财务收支的法律责任
B.
被审计单位有违反审计法规定的行为，由审计机关责令改正，可以通报批评，给予警告
C.
审计机关认为被审计单位有违反审计法规定的行为，可以直接对负责的主管人员和其他直接责任人员给予处分
D.
审计人员滥用职权、徇私舞弊、玩忽职守或者泄露所知悉的国家秘密、商业秘密的，依法给予处分；构成犯罪的，依法追究刑事责任
查看完整题目与答案
【单选题】_______ is NOT included in the factors used in analyzing vowels。
A.
Position of the tongue
B.
Shape of lips
C.
Openness of the mouth
D.
Openness of the vocal cords
查看完整题目与答案
【判断题】审计机关有权对被审计单位有关责任人员给予行政或者纪律处分。
A.
正确
B.
错误
查看完整题目与答案
【单选题】审计机关对有违反审计法规定,违反国家财政、财务收支行为的被审计单位,负有直接责任的主管人员和其他直接责任人员,依法应当予以行政处分的,有权给予行政处分。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】sy22-7PN结正向压降温度特性实验中,甲组同学选择控温电流为0.2A,乙组同学选择0.3A,丙组为0.4A,丁组为0.5A,实验效果较好的是( )
A.
甲组
B.
乙组
C.
丙组
D.
丁组
查看完整题目与答案
【单选题】In the specific factors model, the effects of trade on welfare are _____for mobile factors, ____for fixed factors used to produce the exported good, and _____for fixed factors used to produce the impo...
A.
positive; positive; positive
B.
ambiguous; negative; positive
C.
positive; ambiguous; ambiguous
D.
negative; ambiguous; ambiguous
E.
ambiguous; positive; negative
查看完整题目与答案
【单选题】According to tile passage, scientists used isotopes from the water of the ice core to determine which of following?
A.
The amount of air that had bubbled to the surface since the ice had formed
B.
The temperature of the atmosphere when the ice was formed
C.
The date at which water had become locked in the glacier
D.
The rate at which water had been frozen in the glacier
查看完整题目与答案
【单选题】Project cash reserves are often used for adjustment in escalation factors which may be beyond the control of the project manager. Other than possibly financing (interest) costs and taxes, the three mo...
A.
. Overhead rates, labor rates and material costs.
B.
. Overhead rates, schedule slippages, and rework.
C.
. Rework, cost-of-living adjustments, and overtime.
D.
. Material costs, shipping cost, and scope changes.
E.
. Labor rates, material costs, and cost reporting.
查看完整题目与答案
【单选题】In the specific factors model, the effects of trade on welfare are ________ for mobile factors, ________ for fixed factors used to produce the exported good, and ________ for fixed factors used to pro...
A.
ambiguous; positive; negative
B.
ambiguous; negative; positive
C.
positive; ambiguous; ambiguous
D.
negative; ambiguous; ambiguous
E.
positive; positive; positive
查看完整题目与答案
【单选题】In the specific factors model, the effects of trade on welfare are ________ for mobile factors, ________ for fixed factors used to produce the exported good, and ________ for fixed factors used to pro...
A.
ambiguous; positive; negative
B.
positive; positive; positive
C.
ambiguous; negative; positive
D.
positive; ambiguous; ambiguous
查看完整题目与答案