Soilsare considered as for trace elements, and therefore they play an important role in the environmental cycling of elements.
A: sources
B: origins
C: basin
D: sinks
A: sources
B: origins
C: basin
D: sinks
举一反三
- What elements does a phrase contain and what role does each element play
- What conclusions does the author draw from Napoleon’s and Hitler’s military campaigns? A: The author concludes that the elements of nature play the most important role in any military campaign. B: The author concludes that the elements of nature must be reckoned with in any military campaign.
- What are the three important elements in a play, which are applied in this passage to evaluate Shakespears' tragic plays
- What are the two important elements of Asian culture, especially Chinese culture.( ) A: Honor B: Respect C: Happy D: Play
- The basic elements of a play include _____,________,________,_________,_________,_________,_______.