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为预防乙型病毒性肝炎在围生期的传播，患有乙型病毒性肝炎的妇女应加强营养，必须避孕;在肝炎痊愈后至少半年最好1年后再怀孕。()
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下列有关统计执法检查职权划分表述正确的是（)。A.国家统计局组织管理全国统计工作的监督检查B.下列有关统计执法检查职权划分表述正确的是()。
Although residential real estate activity makes up less than 8% of total U. S. GDP, a housing market like this one can make the difference between positive and negative growth. Most significantly, consumer spending is 66% of GDP, and the purchase of a new home tends to have an "umbrella effect" on the homeowner&39;s spending as he has to stock it with a washer/dryer, a new big-screen TV, and maybe a swing set for the yard.
The main factor in housing&39;s continued strength is a classic economic example of zero-sum boom: the persistent weakness everywhere else. As the 2003 recovery continues to be more forecast than reality. Falling stock prices raised investor appeal for U. S. Treasury Bonds, which in turn, allowed most interest rates to drift even lower. But there are not many signs that there&39;s a bubble ready to burst.
December&39;s new record in housing starts, for example, was nicely matched by the new record in new home sales. If you build it, they will buy and even if an economic pickup starts to reduce housing&39;s relative attractiveness, there&39;s no reason why modest economic growth and improved consumer mood can&39;t help sustaining housing&39;s strength. "The momentum gained from low mortgage interest rates will carry strong home sales into 2003, with an improving economy offsetting modestly higher mortgage interest rates as the year progresses," said David Lereah, chief economist at the National Association of Realtors.
Just as housing has taken up much of the economic slack for the past two years, both as a comforting investment for fretting consumers and a driver of consumer spending itself, a big bump elsewhere in the economy in 2003 could be housing&39;s downfall. If stocks roar back this spring, capital inflows could steal from the bond market, pushing up long-term interest rates. Or Alan Greenspan and the Fed could do the same to short-term rates, as a way to hit the brakes on a recovery that is heating up too fast. In other words, if every-thing possible goes wrong for housing, homeowners should have plenty to compensate them in terms of job security and income hikes.
The author draws a contrast between the housing market and the rest of the economy to show________
休克期又称可逆性失代偿期，微循环淤血，患者出现休克临床症状。()
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