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【单选题】
下列关于我国生物多样性锐减及其原因的实例，错误的是（ ）A.
森林面积锐减，使许多生物失去了生活的家园
B.
偷猎者对我国特有物种、国家一级保护动物--藏羚羊的无情猎杀，是导致藏羚羊濒临灭绝的重要因素
C.
由于生活污水排入等原因，武汉东湖中的生物种类大幅度减少
D.
从国外引进的水葫芦对昆明滇池净化污水、保护滇池物种多样性有促进作用
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【单选题】在反相键合色谱法中固定相与流动相的极性关系是( )
A.
固定相的极性>流动相的极性
B.
固定相的极性
C.
固定相的极性=流动相的极性
D.
不一定,视组分性质而定的
【单选题】What is the main idea of the passage?
A.
Parental divorce has a negative effect on children all through their life
B.
The impact of parental divorce on children varies in personality, age and gender.
C.
Boys may become more aggressive than girls in disrupted families.
D.
Kids of different ages behave differently on parental divorce.
【简答题】They have no intention of turning their swords into ______________________.
【单选题】Alen and Marian passed the beast ___________, keeping as far as possible, with their swords ready in hand.
A.
casually
B.
creatively
C.
crucially
D.
cautiously
【单选题】Allen and Marian passed the beast ___________, keeping as far as possible, with their swords ready in hand
A.
casually
B.
creatively
C.
crucially
D.
cautiously
【单选题】What is the main conclusion of the Robinson and Harriss study?
A.
Parental involvement works better with low-achievers.
B.
Schools should communicate with parents regularly.
C.
The kids of more-involved parents improve over time.
D.
Parental involvement may not necessarily benefit children.
【单选题】在反相键合色谱法中固定相与流动相的极性关系
A.
固定相的极性大于流动相的极性
B.
固定相的极性小于流动相的极性
C.
固定相的极性等于流动相的极性
D.
不一定，视组分性质而定的
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