三峡大坝建成并蓄水后,有些生物的生存受到了严重威胁。为了挽救

三峡大坝建成并蓄水后,有些生物的生存受到了严重威胁。为了挽救这些生物,最好采取下列哪项措施?

A.建立自然保护区

B.将受到威胁的生物易地保护

C.制定生物多样性保护的法律和政策

D.开展生物多样性保护方面的科学研究和宣传教育我国海关对入境的进口货物都进行

 

答案

B

解析:略

 

相关题目

平面α的斜线AB交α于点B,过定点A的动直线l与AB垂直,且交α于
平面α的斜线AB交α于点B,过定点A的动直线l与AB垂直,且交α于点C,则动点C的轨迹是(    )A.一条直线           B.一个圆              C.一个椭
It’s unbelievable that such a small girl ____ have so much knowledge about com
It’s unbelievable that such a small girl ____ have so much knowledge about computer.      A.could          B. would     C.should              D.might
在物理学发展的过程中,许多物理学家的科学发现推动了人
在物理学发展的过程中,许多物理学家的科学发现推动了人类历史的进步。以下叙述中,正确的说法是A.哥白尼创立地心说B.相对论的创立表明经典物
下列关于物质的保存不正确的是(    ) A.AgI、AgBr应保存在
下列关于物质的保存不正确的是(    ) A.AgI、AgBr应保存在棕色瓶中                B.氯水保存在无色广口瓶中 C.液溴应用水封存         
Having ______ (戒掉) smoking for 3 months,he looks much healthier.  
Having ______ (戒掉) smoking for 3 months,he looks much healthier.  
如图所示,对一个给定的电容器充电时,下列的图像中能正
如图所示,对一个给定的电容器充电时,下列的图像中能正确反映电容器的带电荷量Q、电压U和电容器电容C之间关系的是( )
 Advertising is different from other forms of communication in that the advert
 Advertising is different from other forms of communication in that the advertiser pays for the message________. A. to deliver                                    
B By day, Robert Titterton is a lawyer. In his spare time though he goes 6 on st
B By day, Robert Titterton is a lawyer. In his spare time though he goes 6 on stage beside pianist Maria Raspopova — not as a musician but as her page turner. “I’m not a trained musician, but I

最新题目