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【单选题】
最近，英国科学家提出一种观点，认为海绵这种没有大脑，甚至没有任何神经细胞，在地球生活了数亿年的动物在远古时代曾经拥有神经细胞，但在随后的进化中放弃掉了。 如果以下各项为真，最能支持上述观点的是：A.
海绵拥有打造神经系统所需要的基因，而对于海绵来说，无论是大脑还是简单的神经系 统，都可能是“累赘”，是对能量的浪费
B.
研究发现，拥有复杂神经系统的栉水母，其他所有动物的“姊妹群”，是动物祖先的最佳代表
C.
已知年代最久远的拥有复杂大脑的动物出现时间远远早于海绵，它们拥有精密的类大 脑结构，并拥有专门的神经网络
D.
一些寄生虫与它们的近亲相比，就因为寄生这种生活方式失去了复杂的神经系统;而海 绵与它们的近亲相比，生活方式类似于寄生
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举一反三
【单选题】How many people died in the violent earthquake that shook Los Angeles in 1994?
A.
More than 60 people.
B.
At least 25, 000 people.
C.
Almost 60 people.
D.
Almost 25, 000 people.
【简答题】固体废物的运输方式包括车辆运输船舶运输、铁路运输、管道运输和 。
【单选题】How many people died in the clashes between Iraqi demonstrators and US troops?
A.
More than 8.
B.
More than 13.
C.
More than 38.
【单选题】How many people died of Ebola and how many countries were involved?
A.
About 100,000 people died, and nearly all were in the three West African countries.
B.
About 100,000 people died, and nearly all were in the five West African countries.
C.
About 10,000 people died, and nearly all were in the three West African countries.
D.
About 10,000 people died, and nearly all were in the five West African countries.
【单选题】关于如何对来自媒体的信息进行评估，以下说法错误的是？
A.
媒体因为利益关系会做出虚假报道，所以要评估媒体信息的可信度
B.
有时候媒体为了哗众取宠也会进行选择性、夸大的报道
C.
在考察媒体信息的可信度时，不必考虑媒体的专业领域
D.
知名媒体也有可能因为利益关系而做出虚假报道
【单选题】How many people died one regionalone after cyclone Ivan?
A.
Tens of thousands of people.
B.
At least a hundred.
C.
Thousands of people.
D.
At least two hundred.
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