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问题 单项选择题

对三环类抗抑郁药中毒和解救的叙述，错误的是( )。

A．三环类抗抑郁药的中毒与血药浓度相关

B．该类药物中毒的特异性解毒药物是氟马西尼

C．中毒表现为兴奋状态、抑郁状态和心脏毒性

D．心脏传导障碍和心律失常，是中毒常见的致死原因

E．此类药物具有中枢和周围抗胆碱能作用

答案

参考答案：B

解析：[知识点] 三环类抗抑郁药中毒

计算题

(4分)人体缺乏维生素C(简写“Vc”)就会患坏血病，哥伦布探险时的许多船员就因此而死亡。右图所示为某种“维生素C”说明书的一部分。请你回答：

（1）“Vc”相对分子质量为             ；（1分）

（2）“Vc”中氢、氧元素的质量比为         ；（1分）

（3）若正常成人每天对“Vc”的最低需要量为60mg。当“Vc”完全来自右图的“维生素C”时，每天至少服用         次。（2分）
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单项选择题

Home prices slid in November, raising questions about whether the housing recovery is robust enough to maintain a sustained turnaround. From October to November, home prices fell 0.2% after (1) 0.1% in October, according to a report Tuesday by Standard & Poor’s/Case-Shiller’s home price index. (2) five of the 20 metro areas (3) by the index saw price increases for the month.
On a(n) (4) basis, prices were 5.3% lower in November than in November 2008. Prices were the same as in late 2003. "What we’ve seen (5) the past couple of months is that the pace of (6) has fallen down," says Maureen Maitland of Standard & Poor’s. "Some markets have (7) Is that because we haven’t (8) the foreclosure (回赎权的取消) cycle Because of unemployment We’re not seeing the (9) we were seeing in the last summer months. "
Metro areas that have seen a retreat in home prices (10) Seattle, Charlotte, Las Vegas and Tampa. All four (11) gains they made in recent months (12) . (13) , for the 20-metro index, the annual rate of decline is improving. That (14) , with other recent housing reports that show prices (15) or accelerating, could point to (16) the housing market is starting to (17) its footing, some economists say. Existing home sale prices were $178 300 in December, which is 1.5% higher than December 2008, according to a report this week by the National Association of Realtors. That was the first year-over-year (18) in median price since August 2007.
"The most (19) thing we can say is not only the market is stabilizing, but we’ve seen that housing demand is p," says Bernard Baumohl, with the Economic Outlook Group. "Housing probably will continue to climb upwards through the summer, (20) it could slip a little as the tax credit expires. \

A．signs

B．index

C．news

D．marks
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