What does the passage mainly discuss? The "white chalk cliffs of Dover" are mentioned in line 14 of the passage to

admin2005-01-28  7

问题  What does the passage mainly discuss?
  The "white chalk cliffs of Dover" are mentioned in line 14 of the passage to

选项 A、show where the plankton sediment first began to build up
B、provide an example of a plankton buildup that scientists cannot explain
C、provide an example of the buildup of plankton sediment
D、indicate the largest single plankton buildup on Earth

答案C

解析
转载请注明原文地址:https://kaotiyun.com/show/OoyO777K
0

最新回复(0)