【名词&注释】
十字花科(cruciferae)、韧皮部(phloem)、推理判断题
[单选题]十字花科的雄蕊类型是( )。
A. 单体雄蕊
B. 二体雄蕊
C. 多体雄蕊
D. 四强雄蕊
查看答案&解析
举一反三：
[单选题]储藏种子的最适条件是( )。
A. 低温
B. 干燥
C. 低温和干燥
D. 低温和避光
[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]Young hoatzins are different from their parents in that ．
A. they look like young cuckoos
B. they have claws on the wings
C. they eat a lot like a cow
D. they live on river banks
[单选题]葱属(Allium)植物花序初为膜质的( )所包。
A. 苞片
B. 总苞
C. 托叶
D. 芽鳞
[单选题]叶内中脉的韧皮部靠：近下表皮。( )
A. 正确
B. 错误
[单选题]Who has got a little child according to the text?
A. Ms. Leon
B. Mr. Lewis
C. Mr. Moeller
D. Dr. Jeffers
[单选题]38
A. when
B. before
C. unless
D. until
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