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问题 单项选择题

哪个牙的牙根有40%含有双根管

A．下颌第一磨牙
B．下颌第二磨牙
C．上颌第一双尖牙
D．上颌第二双尖牙
E．下颌中切牙

答案

参考答案：D

解析：上颌第二双尖牙的牙根有40%含有双根管。

多项选择题

一25岁男性患者，有鼻息肉病史，最近哮喘发作，医生应建议该患者避免服用下列哪些药物（）

A.利多卡因

B.吲哚美辛（消炎痛）

C.阿托品

D.阿司匹林

E.异丙嗪（非那根）
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填空题



Despite (1) that alcoholic beverages may (2) , a leading medical expert is advising: don’t (3) just yet.
Anybody who’s ever worked in a hospital sees the hospital is full of patients that have (4) disease, but the hospital is not full of patients that have disease related to cholesterol and (5) .
In an (6) in the current New England Journal of Medicine, Dr. Goldberg of Columbia University said it is time to see (7) prevents heart disease. Such a study would give (8) to one group of heart disease patients and not to another, and see (9) .
In the latest study, which followed (10) over a 12-year period, researchers found that those who drank (11) drinks per week (12) of heart attack by (13) compared to (14) .
The lead author, (15) Kenneth Mukamal of Beth Israel Deaconess Medical Center in Boston, insists his study is (16) . For one thing, other studies have not looked at (17) .
Dr. Mukamal says (18) also appear to settle which alcoholic beverage are (19) . "Beer and spirits, beer and liquor, were most ply (20) ."
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