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【判断题】
脊柱保健操具有良好的保健作用，锻炼前首先要掌握自己的身体状况。()A.
正确
B.
错误
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举一反三
【简答题】A new study finds that plants communicate with one another to warn of er. We often consider plants as the furniture of the natural world. They don’t move; they don’t make sounds, they don’t seem t...
【单选题】To paraphrase 18th-century statesman Edmund Burke, “all that is needed for the triumph of a misguided cause is that good people do nothing.” One such cause now seeks to end biomedical research because...
A.
call on scientists to take some actions
B.
criticize the misguided cause of animal rights
C.
warn of the doom of biomedical research
D.
show the triumph of the animal rights movement
【单选题】In Asia the prequake behavior. of animals【C1】______successfully to warn people that earthquakes【C2】______. Recently, a group of American【C3】______and geophysicists visited India and listened【C4】______...
A.
have used
B.
have been used
C.
has been used
D.
will be used
【简答题】李白字( ),是中国文学史上继屈原之后最伟大的 ( )主义诗人,素有( )之称。与杜甫并称( )。
【简答题】Questions 1-7 Complete the following statements using NO MORE THAN THREE WORDS for each answer. 1. Rising temperatures on Earth’s suce are forcing animals and plants to move to __________ and make ...
【单选题】下面有关聚类的说法正确的是？
A.
聚类与分类类似，需要把没有类别标签的样本根据距离分组。
B.
聚类需要根据样本的距离，距离近的分为一组，反之划分到不同的组。
C.
对于同一批样本，使用不同聚类算法得到的结果是相同的。
D.
聚类的类别在分析前就很容易确定。
【单选题】肺的微细结构中导气部的变化特点错误的是
A.
粘膜逐渐变薄
B.
上皮由假复层纤毛柱状上皮逐渐变为单层纤毛柱状上皮
C.
粘膜下层的腺体逐渐增多
D.
平滑肌相对增多
E.
外膜中的软骨变为软骨碎片
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