化学与资源、环境、生产、生活等密切相关．下列说法不正确的是_刷题宝

题干

化学与资源、环境、生产、生活等密切相关．下列说法不正确的是（）

A：太阳能电池可将太阳能转化为电能

B：雾霾天车灯照射的光亮通路属于丁达尔现象

C：推广使用煤液化技术，可减少二氧化碳等温室气体的排放

D：高铁酸钾（K₂FeO₄）是新型高效多功能水处理剂，既能消毒杀菌又能净水

上一题下一题 0.0难度选择题更新时间:2018-08-19 11:37:14

答案(点此获取答案解析）

C

同类题1

设等差数列{a_n}的前n项和S_n=n²+bn+c（b，c为常数，n∈N^*），若a₂+a₃=4，则c=____，b=____．

同类题2

如图为某同学制作的渗透装置及实验结果，下列有关分析正确的是（）

同类题3

已知函数f（x）=sin（2x+

\frac{π}{3}

）+sin（2x﹣

\frac{π}{3}

）+2cos²x﹣1，x∈R

同类题4

阅读下面短文，掌握其大意，然后从每小题所给的A、B、C、D四个选项中，选出一个最佳选项。

School education is very important and useful. Yet no one can 1 everything at school and a teacher can't teach his students everything they want to know. His 2 is to show his students how to learn. He teaches them how to read 3 how to think. So much more is to be learnt outside school by the students 4.

It is always more 5 to know how to study by oneself. It is quite 6 to learn something, but it is difficult to use it to solve problems. Great inventors (发明家) don't get everything 7 school, but they still can 8 many things and change the world a lot.

How can the inventors do all of these? One of the answers is: they 9 how to study. A lot of things are not learnt in the classroom. They get a lot of knowledge by reading outside school. They work hard and never 10 their dreams.

同类题5

关于季风水田农业的叙述，正确的是(　　)

小学学科试题库

初中学科试题库

高中学科试题库