下列关于生态工程的叙述,正确的是() A.鄱阳湖湿地生态恢复工程属于群落演替中的初生

题型:单项选择题

问题:

下列关于生态工程的叙述,正确的是()

A.鄱阳湖湿地生态恢复工程属于群落演替中的初生演替

B.“无废弃物农业”主要体现了物种多样性原理

C.在应用植物修复技术治理被重金属污染的土壤时,需要选择符合要求的植物,这遵循了生态工程中的整体性原理

D.“四位一体”农业生态工程中,往往将蔬菜棚与猪圈连通起来可以提高经济效益,这遵循了生态工程中的系统学和工程学原理

考点:高中生物种群和群落种群和群落题库
题型:单项选择题

下列关于散射比浊分析的描述,正确的是()

A.散射光的强度与复合物的含量成正比

B.测定的散射信号值是在散射信号响应值曲线的上升臂部分

C.散射比浊法分析与透射比浊分析的原理完全不同

D.一定要保持抗体过量以维持抗原抗体复合物的相对不溶解性

E.抗体量恒定时,形成免疫复合物的反应速率与散射信号响应值的上升呈正比

题型:单项选择题

下列关于沙门菌食物中毒临床型错误的是

A.急性胃肠炎型

B.类霍乱型

C.类菌血症型

D.类伤寒型

E.类感冒型

题型:单项选择题

治疗肾阳不足,肠燥津枯便秘的药物是()。

A.巴戟天

B.肉苁蓉

C.仙茅

D.淫羊藿

E.胡芦巴

题型:单项选择题

从业人员经过安全教育培训,了解岗位操作规程,但未遵守而造成事故的,行为人应负()责任。

A、领导

B、管理

C、直接

D、间接

题型:单项选择题

Most people have no idea of the hard work. One of the questions that is always asked of me is (1) I became an animal collector in the first (2) .The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any (3) was not the conventional "mamma" or "daddy", (4) the word "zoo", which I would (5) over and over again with a shrill (6) until someone, in order to (7) me up, would take me to the zoo. When I (8) a little older, we lived in Greece and I had a great (9) of pets, ranging from owls to seahorses, and I spent all my spare time (10) the countryside in search of fresh specimens to (11) to my collection of pets.(12) on I went for a year to the City Zoo, as a student (13) , to get experience of the large animals, such as lions, bears, bison and ostriches, (14) were not easy to keep at home. When I left, I (15) had enough money of my own to be able to (16) my first trip and I have been going (17) ever since then. Though a collector’s job is not an easy one and is full of (18) , it is certainly a job which will appeal (19) all those who love animals and(20) .

第(9)空应选择()

A.many

B.amount

C.number

D.supply

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