题目

Two-year-old Christopher Merrett has such severe food allergies that even the smell can send him into potentially deadly shock． Mrs．Merrett said she first  _________ something was wrong with her son when she stopped _________ him with breast milk at six months old and  _________ onto cows’ milk. She said her son spent three weeks in  _________after sitting in a supermarket trolley which had tiny traces of _________ in it．She said，“It looked  _________ ．We put him there and with minutes his feet and hands had  _________ blue and we knew there was something extraordinar下列各句中，加点的成语使用恰当的一句是    (    )A．傍晚的大山中空无一人，非常寂静，他感到恐慌，空谷足音格外地响，更增添了几分恐怖。B．在这所山村小学里，他一干就是三十年，全身心地扑在了学生身上。他常说：“要有下辈子，还当孩子王!”王老师的这种好为人师的精神深深地感动了那些纯朴的乡亲们。C．面对这位真正的公仆，他有点自惭形秽了。 D．科学无止境，现在自然界的许多问题科学仍然解决不了。科学不是无所不为，而是大有作为。但科学的跨越发展也需要一个积累的过程，厚积薄发。