单项选择题
难降解的有毒物质沿食物链“浮游植物一浮游动物一鱼一猫”传递时,体内该有毒物质浓度最高的生物是( ) A.浮游植物 B.浮游动物 C.鱼 D.猫
- A.浮游植物
B.浮游动物
C.鱼
D.猫
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相关考题
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多项选择题
进出境商品检验是对进出口商品所进行的品质、质量检验和监督管理的制度,商品检验的种类包括()
A.法定检验
B.合同检验
C.公证鉴定
D.委托检验 -
单项选择题
阴性植物的特点是( ) A.光补偿点较低,生长在全光照条件下 B.光补偿点较低,生长在阴湿条件下 C.光补偿点较高,生长在阴湿条件下 D.光补偿点较高,生长在全光照条件下
A.光补偿点较低,生长在全光照条件下
B.光补偿点较低,生长在阴湿条件下
C.光补偿点较高,生长在阴湿条件下
D.光补偿点较高,生长在全光照条件下 -
问答题
You want to write a job application.Your letter should cover these four points;1.your education background2.your main courses at school3.your strong suit (which you are good at)4.your hobby (hobbies)You should write about 100words on answer sheet 2.Do not sign your own name at the end of the letter.Use ’Li Ming’instead You do not need to write the address.
