The answer was followed by an impressive silence .
接着是一片沉默。
2. She is at the pains of finding the answers ...
她在努力寻求答案。
3. The angle of projection affects the answer .
抛射角对结果有影响。
4. Pay special attention to the sign of the answer .
特别注意答案的正负号。
5. Today only a few of the answers are known .
目前已知的答案只有少数几个。
解析：the answer 为特指，特指这个、某个答案（上文或情景中一般有暗示，交谈双方均知道语意），
answer 做名词，意为答案，n.
1.回答，答复。
2.解答，答案。
3.答辩，抗辩。
4.报复。用法：an answer to a question 某问题的解答。 have no answer to (sb.'s letter) 无回音[回信]。 in answer to …以回答，为答复(抗议等)而。 one who knows all the answers 〔美俚〕万事通；老世故。 The answer's a lemon. 〔回答荒唐提问时用语〕你这个(可笑的)问题，无法回答；废话!
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