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【简答题】
道路因素对交通事故的生成有内在的关系，下列描述中正确的是（ ）。
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皮皮学刷刷变学霸
举一反三
【简答题】Scientists are trying hard to discover of each of the genes in our body.
【单选题】One of the major problems of nuclear energy is the inability of scientists to discover a safe way to dispose of the radioactive wastes which occur throughout the nuclear process. Many of these wastes ...
A.
the nuclear process involving the danger of radioactivity at its every stage
B.
fuel for nuclear reactors producing dangerous wastes
C.
the weakness scientists have found in every previous methods
D.
the nature of nuclear wastes together with their lengthy life span
【判断题】The task of a linguist is to discover the nature and rules of the underlying language system()
A.
正确
B.
错误
【简答题】The cause of the accident may never (discover )______in spite of the effort of the police.
【单选题】食源性疾病的病原物可概括为( )。
A.
寄生虫、生物性病原物、物理性病原体
B.
生物性病原物、化学性病原物、物理性病原物
C.
化学性病原物、生物性病原物、食品添加剂
D.
植物性食物中毒、动物性食物中毒、微生物污染
E.
放射性核素、寄生虫、有机磷
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