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【简答题】
水华可因蓝藻爆发所致。科研人员浓度利用某种细菌限制蓝藻数量，相关实验的示意图如下。图中①－⑥表示实验步骤。请回答问题： (1)从细胞结构的特点与复杂程度看，蓝藻属于____细胞；从生态系统的营养结构上看，蓝藻处于_____；蓝藻的代谢类型通常是________________。 (2)引发水华的蓝藻可产生蓝藻毒素。蓝藻毒素______(是、不是)蓝藻生长、繁殖所必需的物质。蓝藻毒素对人是一种致癌因子，可使原癌基因__________，导致正常细胞发生癌变。 (3)图中②、⑤通常使用的是①、④中已培养至_________期的蓝藻和细菌。 (4)图中⑤实验组在每个培养皿中，如果做三个重复实验，可采取的做法是：____________。为完善实验设计方案，应增设对照组，可采取的做法是：________________。 (5)蓝藻通常呈蓝绿色，观察实验结果，发现培养皿中出现褪色空斑，说明蓝藻________________。
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【单选题】Ann doesn’t like milk.She said that she never ___it at home.
A.
use to drinking
B.
used to drinking
C.
used to drink
D.
use to drink
【简答题】Here ______ (is,are) some of the article's findings.
【单选题】听力原文：W: There is an article here in this magazine you might enjoy. It's about buying running shoes. M: It's not chemistry and it's not on the final exam. I can't read it now! Q: What is the man probab...
A.
Shopping for shoes.
B.
Writing an article.
C.
Reading the magazine.
D.
Studying for a chemistry test
【简答题】A．The milk is safe to drink. B．The milk is not safe to drink. C．She shouldn't have bought the milk. D．He wouldn't have milk for breakfast.
【单选题】依据《统计违法违纪处分规定》,强令、授意统计调查对象虚报、瞒报或者伪造、篡改统计资料的法律责任主体是( )。
A.
地方、部门以及企业、事业单位、社会团体的领导人员
B.
各级人民政府统计机构、有关部门及其有关工作人员
C.
统计调查对象中承担经常性政府统计调查的人员
D.
统计调查对象中对提供的统计资料进行审核、签署的人员
【单选题】听力原文：W: There is an article here in this magazine you might enjoy. It's about buying running shoes. M: It's not chemistry and it's not on the final exam. I can't read it now! Q: What is the man probab...
A.
Shopping for shoes.
B.
Writing an article.
C.
Reading the magazine.
D.
Studying for a chemistry test.
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