【名词&注释】
催化作用(catalysis)、浓硫酸(concentrated sulfuric acid)、集体经济(collective economy)、土地承包经营权入股、农田水利设施(farmland water conservancy facility)、化合价(valence)、原子团(radical)、强电解质(strong electrolyte)、在新农村建设中、经营商
[单选题]南瓜和葡萄的卷须都是茎卷须。( )
A. 正确
B. 错误
查看答案&解析
举一反三：
[单选题]下列哪个因素不影响溶液的滤过速度（ ）。
A. 滤器面积
B. 压力差
C. 溶液黏度
D. 颗粒细度
E. 溶液体积
[单选题]BBoiler rooms are often dirty and steamy, but this one is el.ean and cool. Fox Point is a very new47-unit living building in South Bronx, one of the city’s poorest areas. Two-thirds of the people living there are formerly (以前) homeless people, whose rent is paid by the government. The rest are low-income families. The boiler room has special equipment, which produces energy for electricity and heat. It reuses heat that would otherwise be lost to the air, reducing carbon emissions(碳排放)while also cutting costs.
A. Fox Point is operated by Palladia, a group that specializes in providing housing and services to needy, people. Palladia received support from Enterprise Community Partners (ECP), which helps build affordable housing by providing support to housing developers.
B. ECP has created national standards for healthy, environmentally (环境方面) clever and affordable homes which are called, the Green Communities Standards. These standards include water keeping, energy saving and the use of environm entally friendly building materials. Meeting the standards increases housing construction costs by 2%, which is rapidly paid back by lower running costs. Even the positioning of a window to get most daylight can help save energy.
C. , whose duty is to develop and keep the city’s supply of affordable housing, will require all its new projects to follow ECP’s green standards.
D. Similar measures have been taken by other cities such as Cleveland and Denver, but New York’s DHPD is the largest city developer of affordable housing in the country.
E. 45. What is the purpose of describing the boiler room in the first paragraph?
F. To explain the measures the city takes to care for poor people.
G. To suggest that affordable housing is possible in all areas.
H. To show how the environment-friendly building works.
I. To compare old and new boiler rooms.
[单选题]磷钨酸H3PW12O40等杂多酸可代替浓硫酸用于乙酸乙酯的制备。下列说法不正确的是
A. H3PW12O40在该酯化反应中其催化作用
B. 杂多酸盐Na2HPW12O40与Na3PW12O40都是强电解质(strong electrolyte)
C. H3PW12O40、KH2PW12O40与Na3PW12O40中都有相同的原子团(radical)
D. 硅钨酸H4 SiW12O40也是一种杂多酸，其中W的化合价为+8
[单选题]在新农村建设中，某村村民以土地承包经营权入股，村集体以农田水利设施和部分建筑物入股，与一花卉经营商合作成立了股份有限公司，村民和村集体都成为公司的股东，村民同时成为公司的雇员。这种做法
①发展了农村公共服务体系 ②改变了农村集体经济的性质
③有利于农业产业化经营 ④发展了家庭承包经营制度
A. ①② B． ①③ C． ②③
B. ③④
[单选题]You park here! It’s an emergeney exft.
A. wouldn’t B． necdn’t
B. coukln’t
C. mtontn’t
[单选题]There is a great deal of evidencethat music activities engage different parts of the brain .
A. indicate
B. indicating
C. to indicate
D. to be indicating
[单选题]George is going to talk about the geography of his country, but I’d rather he_______ more on its culture.
A. focus
B. focused
C. would focus
D. had focused
本文链接：https://www.zhukaozhuanjia.com/download/k390n9.html
