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【单选题】
单环芳烃的通式是()
A.
CnH2n-4
B.
CnH2n-6
C.
CnH2n-2
D.
CnH2n
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举一反三
【单选题】Which aspect of the robots is. NOT mentioned in the passage?
A.
The vividness of their motion.
B.
Their pleasant appearance.
C.
Their smart designing principles.
D.
Their communicative ability.
【单选题】“社会保障”对应的英文表达是:
A.
Social Insurance
B.
Social Safety
C.
Social Security
D.
Social Protection
【多选题】我国的土壤污染是在经济社会发展过程中长期累积形成的,主要原因包括:
A.
一是工矿企业生产经营活动中排放的废气、废水、废渣是造成其周边土壤污染的主要原因。尾矿渣、危险废物等各类固体废物堆放等,导致其周边土壤污染。汽车尾气排放导致交通干线两侧土壤铅、锌等重金属和多环芳烃污染。
B.
二是农业生产活动是造成耕地土壤污染的重要原因。污水灌溉,化肥、农药、农膜等农业投入品的不合理使用和畜禽养殖等,导致耕地土壤污染。
C.
三是生活垃圾、废旧家用电器、废旧电池、废旧灯管等随意丢弃,以及日常生活污水排放,造成土壤污染。
D.
四是自然背景值高是一些区域和流域土壤重金属超标的原因。
【简答题】密码技术是让信息的者()
【单选题】Your body doesn’t know how to lie.’ indicates ______.
A.
something wrong with your body
B.
body language is important
C.
body contact is dangerous
D.
We can’t separate mind from body
【单选题】Which of the following statements is NOT true?
A.
Britain is the first European country to allow 'gay marriages'.
B.
Gay marriages are officially recognized across Canada in 2005.
C.
Same-sex partnerships are still not legalized in California, USA.
D.
Vermont was the first American state to permit same-sex partners to get married.
【单选题】“社会保障”对应的英文表达是?
A.
Social Insurance
B.
Social Safety
C.
Social Security
D.
Social Assistance
【单选题】The first European discoverer of Canada was from
A.
Britain.
B.
Spain.
C.
France.
D.
Italy.
【多选题】我国土壤环境质量受多重因素叠加影响,土壤污染是在经济社会发展过程中长期累积形成的。造成土壤污染或超标的主要原因包括( )等。
A.
农业生产活动
B.
工矿业生产经营活动
C.
我国土壤自然恢复能力偏低
D.
自然背景值高
【单选题】The first European country that attacked first the trade system centered on the Indian Ocean from outside was
A.
Spanish
B.
Dutch
C.
England
D.
Portugal
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