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【单选题】
人体站立时,骨骼肌的收缩偏于A.
等长收缩
B.
等张收缩
C.
单收缩
D.
不完全强直收缩
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【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
【简答题】党章要求党的____必须正确行使人民赋予的权力,坚持原则,依法办事,清正廉洁,勤政为民,____,艰苦朴素。
【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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