The "white chalk cliffs of Dover" are mentioned in line 14 of the passage to（）
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 all example of the buildup of plankton sediment
D: indicate the largest single plankton buildup on Earth
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 all example of the buildup of plankton sediment
D: indicate the largest single plankton buildup on Earth
C
举一反三
- 海洋生物包括 A: Plankton B: Nekton C: Mammals D: Benthos
- 海洋生物包括 A: Plankton B: Necton C: Mammals D: Benthos
- The white cliffs of Dover are an example of a/an ( ) chalk deposit. A: foraminiferan B: radiolarian C: heliozoan D: difflugian E: arcellian
- We've all paid a ___ bill or purchased gasoline. A: buildup B: contributor C: component D: utility
- The plant "sumpweed" is mentioned in line 25 in order to（） A: contrast a plant with high nutritional value with one with little nutritional value B: explain the medicinal use of a plant C: clarify which plants grew better in places where trees were not cut down D: provide an example of a plant that was easy to domesticate
内容
- 0
Inthefiftieslastcenturymanynewcities（）inthedesert A: bringup B: makeup C: grewup D: buildup
- 1
Why does the professor say this: A: To provide an example of the topic. B: To answer a student’s previous question. C: To show that a popular idea is not true. D: To explain how people understand art.
- 2
The author mentioned the tornado in Edmonton, Canada in order to ______. A: explain different types of weather B: show that tornadoes occur frequently in Canada C: indicate the tornado are common in summer D: give an example of a damaging storm
- 3
Which of the following are used to provide illustrations? ( ). A: Another example B: Therefore C: Because D: For example
- 4
含有“增加”的英文短语:_______ A: buildup B: moreandmore C: pileup D: stepup