皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
化学是一门实用的、中心的学科，生活中的许多问题常涉及到化学知识。它在给经济发展和群众生活带来方便的同时，也产生负面的影响。下列有关叙述不正确的是
A.
次氯酸和臭氧都是强氧化剂，杀死水中的细菌。自来水常用氯气来杀菌消毒，是因为氯气杀菌消毒效果要比臭氧好，且不会残留有毒、有害物质
B.
人们应用原电池原理，制作了多种电池，如干电池、充电电池、高能电池等。电池在现代生产和科学技术中发挥了重要作用，但废旧电池会对生态环境和公众健康造成危害，所以废旧电池必须回收再利用
C.
明矾常用作净水剂，但人体摄入大量铝盐，易患“老年性痴呆”，所以明矾不宜大量作净水剂使用
D.
氟氯烃为一类含有氟和氯的有机物，是制冷效果极佳的致冷剂，但它会破坏臭氧层，科研人员正在积极研发环保型的替代产品以减少氟氯烃的使用量
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【判断题】发动机在高转速、大负荷时装备粗而短的进气歧管;而在中、低转速和中、小负荷时配用细而长的进气歧管。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which land in Gulliver's Travels is the land of impractical, distracted academics?
A.
Lilliput.
B.
Brobdingnag.
C.
Laputa.
D.
The land of the Houyhnhnms.
查看完整题目与答案
【单选题】What is implied when people say "dig like Andy"?
A.
Stupidity
B.
Perseverence
C.
Craziness
D.
Independence
查看完整题目与答案
【简答题】____ the watch and see if you can find out what’s wrong with it. A. Pack up     Break down     C. Dig out                D. Take apart
查看完整题目与答案
【单选题】Which is the effect of Land Pollution?
A.
Give off bad smells
B.
Pollute soil and groundwater
C.
Reduce farming land
D.
Contribute to the greenhouse effect/global warming
查看完整题目与答案
【单选题】发动机在高转速、大负荷时装备粗而短的进气歧管;而在中、低转速和中、小负荷时配用细而长的进气歧管。( )
A.
是
B.
否
查看完整题目与答案
【单选题】Which of the following transactions is subject to an immediate charge to land appreciation tax (LAT)?
A.
Company P contributed the land use right for the construction of a new factory as capital to its new subsidiary
B.
Company D contributed the land use right for the construction of a shopping mall as capital to its new subsidiary
C.
Company X which owned an office tower was merged by absorption with Company Y. Company X was dissolved after the merger
D.
The local government transferred the land use right for the construction of a hotel to Company K
查看完整题目与答案
【判断题】发动机在低转速时,用细长的进气歧管,可以增加进气的气流速度和气压强度,使燃油雾化的更好,燃烧的更好,提高扭矩。
A.
正确
B.
错误
查看完整题目与答案
【简答题】给下列句子排列顺序。 (     ) What should you do then? (     ) First, I dig a hole in the soil. (     ) Put the tree in the hole and fill it with soil. (     ) I'm going to plant a tree. (     ) How do you do th...
查看完整题目与答案
【单选题】During which centuries did the Germanic tribes carve out kingdoms and fight for land? (all AD)
A.
5th and 6th
B.
6th and 7th
C.
7th and 8th
查看完整题目与答案
相关题目：
【判断题】发动机在高转速、大负荷时装备粗而短的进气歧管;而在中、低转速和中、小负荷时配用细而长的进气歧管。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which land in Gulliver's Travels is the land of impractical, distracted academics?
A.
Lilliput.
B.
Brobdingnag.
C.
Laputa.
D.
The land of the Houyhnhnms.
查看完整题目与答案
【单选题】What is implied when people say "dig like Andy"?
A.
Stupidity
B.
Perseverence
C.
Craziness
D.
Independence
查看完整题目与答案
【简答题】____ the watch and see if you can find out what’s wrong with it. A. Pack up     Break down     C. Dig out                D. Take apart
查看完整题目与答案
【单选题】Which is the effect of Land Pollution?
A.
Give off bad smells
B.
Pollute soil and groundwater
C.
Reduce farming land
D.
Contribute to the greenhouse effect/global warming
查看完整题目与答案
【单选题】发动机在高转速、大负荷时装备粗而短的进气歧管;而在中、低转速和中、小负荷时配用细而长的进气歧管。( )
A.
是
B.
否
查看完整题目与答案
【单选题】Which of the following transactions is subject to an immediate charge to land appreciation tax (LAT)?
A.
Company P contributed the land use right for the construction of a new factory as capital to its new subsidiary
B.
Company D contributed the land use right for the construction of a shopping mall as capital to its new subsidiary
C.
Company X which owned an office tower was merged by absorption with Company Y. Company X was dissolved after the merger
D.
The local government transferred the land use right for the construction of a hotel to Company K
查看完整题目与答案
【判断题】发动机在低转速时,用细长的进气歧管,可以增加进气的气流速度和气压强度,使燃油雾化的更好,燃烧的更好,提高扭矩。
A.
正确
B.
错误
查看完整题目与答案
【简答题】给下列句子排列顺序。 (     ) What should you do then? (     ) First, I dig a hole in the soil. (     ) Put the tree in the hole and fill it with soil. (     ) I'm going to plant a tree. (     ) How do you do th...
查看完整题目与答案
【单选题】During which centuries did the Germanic tribes carve out kingdoms and fight for land? (all AD)
A.
5th and 6th
B.
6th and 7th
C.
7th and 8th
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题