填空题

Einstein entertained himself with the violin in his spare time because violin was one of his best loved musical instruments.

【参考答案】

NG

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近年来，网恋在年轻人中呈上升趋势；2．网恋的利处与带来的问题；3．你的看法。

填空题

Einstein’ s theory is easily understandable after it was formed at that time.