【单选题】Things of ___ kind come together; people of ___ kind fall into ___ same group.
【判断题】防水楼地面经常用在室内的卫生间、盥洗室、浴室及厨房等房间。
【简答题】1-11. 乙醚和正丁醇具有相似的水溶性,但二者沸点相差极大,为什么? Diethyl ether and 1-butanol are isomers, and they have similar solubilities in water. Their boiling points are very different, however. Explain why these two compou...
【单选题】Northern Blot 是用来检测()。
【单选题】Things of kind come together; people of kind fall into same group. [ ]
【单选题】Northern blot是利用核素标记的()来检测特异性RNA序列的一种方法。主要用于检测特异性mRNA,以分析该基因的表达状况。
【多选题】868,老子的《道德经》开篇一句:道可道,非常道!这句话在沙盘经营中给出的启示是()。