A． The man should take his vacationsomewhere else.
B．She doesn’t know when her semester ends.
C． She hasn’t called the travel agent yet
D．The man may have to reschedule his trip.

坚持正确的政治方向

以保证人民当家作主为根本

以增强党和国家的活力、调动人民积极性为目标

发展社会主义政治文明

が　

　に　

を　

　と

发展是硬道理，是目的

稳定是解放和发展生产力的必由之路

改革是经济社会发展的强大动力

发展与改革是社会稳定和国家长治久安的基础

　います　

いらっしゃい ます

　あります　

　まいります

As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded "Is there a doctor on board.’" announcement. I’ve been (1) only once -- for a woman who had merely fainted. But the (2) made me quite curious about how (3) this kind of thing happens. I wondered what I would do if (4) with a re M midair medical emergency -- without access (5) a hospital staff and the usual emergency equipment. So (6) the New England Journal of Medicine last week (7) a study about in-flight medical events, I read it (8) inter eat.

The study estimated that there are a (n) (9) of 30 in-flight medical emergencies on U. S. flights every day. Most of them are not (10) ; fainting and dizziness are the most frequent complaints.(11) 13% of them roughly four a day -- are serious enough to (12) a pilot to change course. The most common of the serious emergencies (13) heart trouble, strokes, and difficulty breathing.

Let’s face it: plane rides are (14) . For starters, cabin pressures at high altitudes are set at roughly (15) they would be if you lived at 5,000 to 8,0130 feet above sea level. Most people can tolerate these pressures pretty.(16) , but passengers with heart disease (17) experience chest pains as result of the reduced amount of oxygen flowing through their blood.(18) common in-flight problem is deep venous thrombosis -- the so-called economy class syndrome (综合症).(19) happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation, flights with at (20) one attendant are starting to install emergency medical kits to treat heart attacks.