某猪群,部分3~4月龄育肥猪出现消瘦,顽固性腹泻,用抗生素治疗效果不佳,剖检死亡猪在

题型:单项选择题 A3/A4型题

问题:

某猪群,部分3~4月龄育肥猪出现消瘦,顽固性腹泻,用抗生素治疗效果不佳,剖检死亡猪在结肠壁上见到大量结节,肠腔内检获长为8~11mm的线状虫体。治疗该病可选用的药物是()

A.三氮脒

B.吡喹酮

C.左旋咪唑

D.地克珠利

E.拉沙里菌素

考点:执业兽医师综合科目执业兽医综合科目2010年真题
题型:单项选择题 A3/A4型题

In America,Virginia Beach has all the elements of a classic seaside resort:brilliant beaches,a lively boardwalk,plenty of restaurants and nightspots,and amusement rides sure to appeal to kids.Many believe Virginia Beach is at its best in the off-season,when the town is less crowded but the weather is still mild.

Meanwhile,some safety tips should be followed,enjoying the happiness and excitement the beach offers.

The number l safety tip concerns ocean safety:pay attention to Flag conditions posted on the lifeguard stands.Lifeguards post a red flag to warn when the ocean water is dangerous.Take them seriously! Tourists from land-locked regions are particularly easily attracted by the magic of the waves.However,a calm ocean can become risky without warning.Make sure you swim near a lifeguard.Swimming without lifeguard protection is almost five times as great as drowning at a beach with lifeguards.

Never swim alone.Many drownings involve single swimmers.When you swim with someone else,if one of you has a problem,the other may be able to get help,including signaling for assistance from others.

Don't fight the current.The facts show that some 80% of rescues by lifeguards at ocean beaches are caused by currents.These currents are formed by surf and gravity,because once surf pushes water up the slope of a beach,gravity pulls it back.This can create concentrated rivers of water moving offshore.If you are caught in a rip current,don't fight it by trying to swim directly to shore.Instead,swim parallel to shore until you feel the current relax,then swim to shore.Most rip currents are narrow and a short swim parallel to shore will help bring you to safety.

小题1:When coming to Virginia Beach,children can enjoy the happiness of the following except       .

A.walking on the road made of wood

B.joining the nightspots

C.having interesting rides

D.skiing in the sea小题2:Many people believe the best time to visit Virginia Beach may be     .

A.after autumn school term beginning

B.in the slimmer vacation

C.during the Christmas holiday

D.in the cold winter小题3:Swimming in the sea you'd better not swim     .

A.with a friend

B.within the sight of the lifeguard

C.with the current

D.as far as you like小题4:From the passage,we can know     .

A.one in five persons swimming in the sea is drowned

B.if one with lifeguard were drowning,five persons without lifeguard would be

C.some 80%people drowning by the currents are rescued by lifeguards

D.some 20%drowning by the currents are rescued by life guards小题5:The passage mainly tells us      .

A.some safety tips when swimming in the sea

B.the happiness and excitement the beach offers

C.Virginia Beach has all the elements of a classic seaside resort

D.the dangers for tourists from land-locked regions to swim in the sea

题型:单项选择题 A3/A4型题

涂料施工前,基层阴阳角应做成圆弧形,阴角直径宜大于()mm。

A、70

B、60

C、50

D、40

题型:单项选择题 A3/A4型题

煤气红外线辐射器的金属网的主要成分是().

A.铁

B.铬

C.铜

D.铝

题型:单项选择题 A3/A4型题

级控制系统的调节器选择的一般原则是什么?

题型:单项选择题 A3/A4型题

《突发公共卫生事件应急条例》(国务院376号令)于()年()月()日公布实施的。

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