聽課
課程與PC端同步更新,充分利用零碎時(shí)間。做題
海量精選試題,想練就練,瞬間提分。答疑
海量精選試題,想練就練,瞬間提分。直播
名師大咖面對(duì)面,有問(wèn)有大收獲多。The young engineer sat down on a rock and rested his head in his hands. He would never get home; it was 1 . For weeks he had been 2 in the Northwest Canadian forest. Now there was a terrible 3 behind his eyes, and worse of ail, he had gone 4 .
Suddenly a man 5 out of the woods, an Indian who had been hunting in the area. Seeing the engineer's 6 , he caught a fish in a nearby 7 and fed the sick man the 8 of the fish and some flesh from its head. 9 within a few hours the engineer's pain was 10 . A day later he could 11 again, and the next day he had 12 recovered.
When he returned home, the engineer told the 13 to Dr Price. Not until years later did it become a(n) 14 fact that this was just an everyday 15 doing its work. For what the engineer did, by eating fish eyes, was to 16 his vitamin (維生素)。
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