【单选题】分子式为C8H7ClO3的化合物其不饱和度为( )
【判断题】Thomas More was a great British humanist during the Renaissance. Among his writings the best known is Utopia which was originally written in Latin. It is a picture of an ideal non-Christian state wher...
【单选题】罗伯逊易位发生的原因是
B.
两条近端着丝粒染色体在着丝粒处断裂后相互融合形成一条染色体
C.
任何两条染色体在着丝粒处断裂后相互融合形成一条染色体
D.
两条近端着丝粒染色体在任何一处断裂后相互易位形成一条染色体
【简答题】A With the development of science and technology, our daily life is becoming more colorful and more convenient. An Underwater Hotel It looks like a spaceship but it is actually a picture of an under...
【判断题】1033()打皱褶是将胸省通过抽皱褶的形式表现出来,以改变省份造型的一种形式。