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【单选题】

对蓟马防治效果较好的杀虫剂是 。

A.
鱼藤酮
B.
苦参碱
C.
印楝素
D.
阿维菌素
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参考答案:
参考解析:
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举一反三

【单选题】Many Americans harbor a grossly distorted and exaggerated view of most of the risks surrounding food.Fergus Clydesdale, head of the department of food science and nutrition at the University of Massac...

A.
They overlook the risks of the food they eat.
B.
They overestimate the hazards of their food.
C.
They are overoptimistic about the safety of their food.
D.
They overstate the government's interference with the food industry.

【单选题】马拉硫磷(即防虫磷)对下列那些害虫的防治效果较好()。

A.
锯谷盗、粗脚粉螨
B.
谷蠹、小菌虫
C.
赤拟谷盗、白腹皮蠹幼虫
D.
锯谷盗、米象

【多选题】下列属于疾病防治效果的指标是( )

A.
发病率
B.
治愈率
C.
死亡率
D.
有效率
E.
生存率

【单选题】对血吸虫病的诊断、疗效考核和防治效果都有重要价值的是

A.
皮内试验
B.
环卵沉淀试验
C.
间接血凝试验
D.
粪便涂片直接检查虫卵
E.
循环抗原酶免疫法