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问题 单项选择题 B型题

对HP耐药率迅速上升（）

A.法莫替丁

B.奥美拉唑

C.De-Nol

D.甲硝唑

E.呋喃唑酮

答案

参考答案：D

单项选择题

Life expectancy among adults 45 and 65 years of age by family income, sex, and race: United States, average annual 1979-89




A sequence of numbers begins 1, 1, 1, 2, 2, 3 and then repeats this pattern forever. What is the sum of the 135th, 136th, and 137th numbers in the sequence
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单项选择题

岩溶可划分为（）和地下岩溶。

A、地表岩溶

B、洞穴岩溶

C、裂隙

D、以上都不正确
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