【简答题】The “American sleep debt” (Line 1, Para. 3) is the result of ________. A) the traditional misconception the Americans have about sleep B) the new sleep policy of the Clinton Administration C) the rapi...
【简答题】The phrase “puts it down to” (Line 1, Para. 3) is closest in meaning to “________”. A) attributes it to B) finds it a reason for C) sums it up as D) compares it to