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【单选题】
下面哪一项不成立称潜在媒介( )A.
与人的关系密切
B.
数量大,寿命长
C.
季节消长与疾病的流行基本一致
D.
自然界中携带病体
E.
实验室人工感染成功
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Too many vulnerable child-free s are being ruthlessly ( 无情的 ) manipulated into parent-hood by their parents, who think that happiness among older people depends on having a grand-child to spoil. ...
【判断题】转基因技术是将人工分离和修饰过的基因导入到生物体基因组中,由于导入基因的表达,引起生物体的性状的可遗传的修饰,这一技术称之为转基因技术。转基因食品:转基因食品也称作基因修饰食品,系指利用基因工程技术改变基因组构成的动物、植物和微生物生产的食品和食品添加剂。
A.
正确
B.
错误
【简答题】Part Three Reading comprehension Passage one Too many vulnerable child-free s are being ruthlessly ( 无情的 ) manipulated into parent-hood by their parents, who think that happiness among older peop...
【简答题】Fill in the blanks with the words in the box. Pay attention to their meanings and parts of speech in the sentences, and be sure to use the correct forms. cast contract fancy grey pillow range score sc...
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