单项选择题

我国南方放牧犊牛群发病,表现精神沉郁,食欲废绝,严重贫血,腹泻,粪便带血,最后衰竭死亡,剖检见门静脉和肠系膜静脉内有多量线状虫体。治疗该病的药物是(2016 真题下156) A.
阿维菌素 B.
左旋咪唑 C.
吡喹酮 D.
硫酸喹啉脲 E.
莫能菌素

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单项选择题
( )主要决定了移动应用的网络质量,如带宽、传输速率等。A. 中间件层B. 移动应用层C. 网络基础层D. 以上都不是
未分类题
It can be inferred from the passage that ______.A.tobacco lobbyists has a rather strong influence on domestic politicsB.the health ministries of poorer countries don't want to control tobacco useC.tobacco industry brings more harm than good to the poorer countriesD.each country should be free to decide if the promotion of smoking should be stopped
A.A.tobacco
B.the
C.tobacco
D.each
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