填空题
According to Darwin, random changes that enhance
a species’
ability
for surviving
are
naturally selected and passed on
to succeeding
generations. A. a species’ B. for surviving C. are D. to succeeding
【参考答案】
B, 改for surviving为to survive
点击查看答案&解析
<上一题
目录
下一题>
热门
试题
单项选择题
The passage is mainly about ______.
A.the features of volcanic activities
B.the importance of the theory about drifting plate
C.the significance of hot spots in geophysical studies
D.the process of the formation of volcanoes
点击查看答案&解析
单项选择题
The hot spot theory may' prove useful in explaining ______.
A.the structure of the African plates
B.the revival of dead volcanoes
C.the mobility of the continents
D.the formation of new oceans
点击查看答案&解析
相关试题
1. Write out the messages conveye...
天体物理学家使用南极陆基探测器及球载仪器...
宇宙膨胀说虽然听似奇特,但它是基本粒子物...
假如那些小热点看上去同预计的一致,那就意...
更为重要的是,这是科学家们所能观测到的最...