2010年職稱英語(yǔ)衛(wèi)生類C級(jí)每日一練(1.15)

字號(hào):

1. The old concerns lose importance and some of them vanish altogether.
    A) develop
    B) disappear
    C) link
    D) renew
    參考答案:1. B.
    分析:段落的結(jié)構(gòu)-- Previous studies have shown the potential dangers of chronic shortages of sleep一for instance..表明了該段的中心是講述“長(zhǎng)期睡眠不足的潛在危險(xiǎn)”