In the sentence 'From an analysis of the hot-spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.', what is the main clause?

A. From an analysis of the hot-spot population

B. it appears

C. that the African plate is stationary

D. that it has not moved during the past 30 million years

答案解析

The core concept tested here is the identification of the main clause in a complex sentence. The correct answer is B, 'it appears', as it is the main clause that contains the subject 'it' and the verb 'appears'. Options A, C, and D are incorrect because they are either prepositional phrases or subordinate clauses that provide additional information but do not contain the main subject and verb of the sentence.

正确答案：B

In the sentence 'From an analysis of the hot-spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.', what is the main clause?

答案解析

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