The word 'skyrocket' (Line 11, Paragraph 2) means ______.
A.rising sharply
B.widening suddenly
C.spreading widely
D.expanding quickly

A.A.rising
B.widening
C.spreading
D.expanding

【参考答案】

A
解析：指代题。从单词所在的句子语境中，我们可以判断skyrocket与accumulate的意思相近，并且程......

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