Airborne germs are________, yet surprisingly few are virulent; despite the fact we inhale them with nearly every breath, the vas

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问题 Airborne germs are________, yet surprisingly few are virulent; despite the fact we inhale them with nearly every breath, the vast majorities of them are innocuous and are neutralized easily by our immune system.

选项 A、ubiquitous
B、intolerable
C、omnipresent
D、plentiful

答案A

解析 由后半句的yet surprisingly可知,此处应填与few are virulent相反的意思,所以应为看起来到处可见的意思。ubiquitous “普遍存在的,似乎无处不在的,十分普遍的”;intolerable“不能忍受的,无法容忍的”;omnipresent “无所不在的,同时遍在的”;plentiful“丰富的,大量的”。只有A符合事实,故选A。
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