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Tilman等人研究了两种淡水硅藻的竞争。硅藻需要硅酸盐作为其细胞壁的原料。实验中不断地定期加硅于培养液中。两种硅藻单独培养（）和一起培养（右图）的种群变化曲线如图所示。据图分析，以下正确的选项是（）A.
与单独培养相比，混合培养硅藻的种群指数增长时间缩短了5-6天
B.
当种群密度不再上升时，培养液中硅藻的数量是该培养实验条件下该种群的环境容纳量
C.
单独培养的两种硅藻相比较，硅藻B对硅的利用量多
D.
混合培养时，由于硅藻S对硅的利用使培养液中硅浓度低于硅藻A所能生存的水平以下，导致竞争的结局是硅藻S取胜，硅藻A被排斥掉
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【单选题】How did Frank feel about his daughter?
A.
He thought it doesn't matter that he was not going to be by her side while she grew up.
B.
He was not very bitter that he was not going to be by her side while she grew up.
C.
He was very bitter that he was not going to be by her side while she grew up.
D.
He was very happy that he was not going to be by her side while she grew up.
【简答题】阅读理解。 A king gave his daughter a beautiful necklace. However , the necklace was stolen. So the kingtold his people to look for it and said that he would give $ 50,000 to anyone who found it. One day, ...
【简答题】请翻译“lunar New year's Eve”
【单选题】When did Benjamin leave his daughter Caroline?
A.
Before she was born.
B.
When she was one, after her first birthday party.
C.
When she was two, after her second birthday party.
D.
When she was in high school.
【单选题】Estamos convencidos de que con la aproximación de la Expo 2010 el sistema de tráfico de Shanghái seguirá perfeccionándose.
A.
我们认为，在 2010 年世博会召开后，上海市的交通设施越来越完善。
B.
我们相信，随着 2010 年世博会的不断临近，上海市的交通设施一定会越来越完善。
C.
我们认为，随着 2010 年世博会的不断临近，上海市的交通设施正在越来越完善。
【简答题】翻译It's the hottest season in a year.
【单选题】How did father and his daughter have fun ?
A.
They made a snow man
B.
They played a snow fight with each other
C.
They travelled to a snowy place
【单选题】What did the author advice his daughter to do?
A.
He advise her to follow her own conscience.
B.
He advised her to throw away her planner for a few weeks.
C.
He advised her to relax and enjoy the new baby.
D.
All of the above.
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