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下列犯罪要求以谋取不正当利益为要件的有（　　）。
A.索贿的
B.收受贿赂的
C.行贿的
D.单位受贿的

钠泵转运Na+、 K+属于

A.单纯扩散
B.载体中介的易化扩散
C.通道中介的易化扩散
D.主动转运

For the first time in history more people live in towns than in the country.In Britain this has had a curious result.While polls show Britons rate“the countryside”alongside the royal family,Shakespeare and the National Health Service（NHS）as what makes them proudest of their country,this has limited political support.
A century ago Octavia Hill launched the National Trust not to rescue stylish houses but to save“the beauty of natural places for everyone forever.”It was specifically to provide city dwellers with spaces for leisure where they could experience“a refreshing air.”Hill’s pressures later led to the creation of national parks and green belts.They don’t make countryside any more,and every year concrete consumes more of it.It needs constant guardianship.
At the next election none of the big parties seem likely to endorse this sentiment.The Conservatives’planning reform explicitly gives rural development priority over conservation,even authorizing“off-plan”building where local people might object.The concept of sustainable development has been defined as profitable.Labour likewise wants to discontinue local planning where councils oppose development.The Liberal Democrats are silent.Only Ukip,sensing its chance,has sided with those pleading for a more considered approach to using green land.Its Campaign to Protect Rural England struck terror into many local Conservative parties.
The sensible place to build new houses,factories and offices is where people are,in cities and towns where infrastructure is in place.The London agents StirlingAckroyd recently identified enough sites for half a million houses in the London area alone,with no intrusion on green belt.What is true of London is even truer of the provinces.
The idea that“housing crisis”equals“concreted meadows”is pure lobby talk.The issue is not the need for more houses but,as always,where to put them.Under lobby pressure,George Osborne favours rural new-build against urban renovation and renewal.He favours out-of-town shopping sites against high streets.This is not a free market but a biased one.Rural towns and villages have grown and will always grow.They do so best where building sticks to their edges and respects their character.We do not ruin urban conservation areas.Why ruin rural ones？
Development should be planned,not let rip.After the Netherlands,Britain is Europe’s most crowded country.Half a century of town and country planning has enabled it to retain an enviable rural coherence,while still permitting low-density urban living.There is no doubt of the alternative—the corrupted landscapes of southern Portugal,Spain or Ireland.Avoiding this rather than promoting it should unite the left and right of the political spectrum.
Which of the following can be inferred from Paragraph 3?

A.Labour is under attack for opposing development.
B.The Conservatives may abandon“off-plan”building.
C.The Liberal Democrats are losing political influence.
D.Ukip may gain from its support for rural conservation.