Parallelism （平行结构，排比）is regularly used to______________.

The American novelist Nathaniel Hawthorne is known for his“black vision．”The term “black vision” refers to______________.

Parallelismis regularly used to______________.? introduce the main idea at the beginning|summarize|compare one thing with another|list facts, ideas and events etc. in order to achieve certain rhetorical effect

Parallelism is regularly used to______________. A: list facts, ideas and events etc. in order to achieve certain rhetorical effect B: compare one thing with another C: summarize D: introduce the main idea at the beginning