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【单选题】
Excessive richness of nutrients in lake called as________ ()
A.
Algal bloom
B.
Acid Rain
C.
Eutrophication
D.
None of them
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参考解析：
刷刷题刷刷变学霸
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【单选题】Salmon catches in the Atlantic have decreased by _____% since the early 1970s ()
A.
90
B.
80
C.
75
D.
92
【单选题】以下不属于霍桑实验发现的是（ ）
A.
工人的工作效率取决于个人成就感
B.
非正式群体对工人的工作效率有影响
C.
工人在劳动过程中有社会需要
D.
管理者应通过提高士气来提升工作效率
【多选题】What are the ecological benefits of forests?____
A.
Forests can conserve water and soil
B.
Forests can prevent wind and fix sand
C.
Forests can regulate the climate
D.
Forests can eliminate pollution
【多选题】Which of the following two aspects are included in the construction of the conversion of farmland to forests:____
A.
Return farmland to forest on hillside farmland
B.
Afforestation in barren hills and wasteland suitable for forest
C.
Afforestation in the tidal flat
D.
Afforestation in saline soil
【单选题】选出对下列句子的重音和语调判断正确的选项。____Close the door! (strong command)
A.
Close the ̗door!
B.
'Close the `door!
C.
Close the `door!
D.
'Close the ̗door!
【单选题】选出对下列句子的重音和语调判断正确的选项。____Would you like chicken or beef?
A.
'Would you 'like ̗chicken or ̗beef?
B.
Would you 'like ̗chicken orˋbeef?
C.
Would you 'likeˋchicken or ̗beef?
D.
'Would you 'likeˋchicken orˋbeef?