正确答案:
题目:内禀增长率由种群所处的环境条件所决定。( )
解析:×
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举一反三的答案和解析:
[单选题]维持心血管活动的基本中枢位于 ( )
延髓
[单选题]没有公证遗嘱的数份遗嘱中,如果内容相抵触的,以( )为准。
最后所立的遗嘱
解析:D。本条是考查遗嘱效力的问题,根据《继承法》有关规定,应选择D。
[单选题]Mathew Brady______.
was famous for his unusual pictures
解析:39.答案为B 根据第四段“The pictures were unusual because they were very lifelike.”可知 Mathew Brady拍的照片栩栩如生,因此而闻名。
[单选题]肺下界降低常见于
肺气肿
[单选题]______ the temperature, ______ water turns into steam.
The higher... the faster
解析:the+比较级,the+比较级,表示“越……,就越……”。