That may be higher than the historical average but may simply reflect the expectation that dividends may be cut sharply this year, and will thus rebound from a much lower base.
这可能高于历史平均水平,但可能也只是反映了股息今年可能会大幅减少的预期,从而会从一个更低的位置反弹。
Burley tobacco, the kind grown by my great-grandmother Zelma in Kentucky, is harvested as a whole stalk cut at the base and then naturally air dried in the field or in a barn.
我曾祖母在肯塔基州种的白肋烟则是整棵烟草一起收割然后去茎后,放在仓库里待它自然风干。
When it cuts it leaves sticky ends or un-base paired single stranded regions on each end of the part its cut and that's just a property of many restriction enzymes; not all, some cut blunt,just right down the middle.
它切割后会留下两个粘性末端,或者未配对的单链部分,这是许多限制性内切酶的特性,但不是全部,有些限制性内切酶是从中间钝切的
Well one way you could do it is by saying 'if I have this one base pair difference then this sequence is going to be cut by a specific restriction enzyme that recognizes the sequence CTGAGGA'.
一种方法是通过考虑,"如果我有这个不同的碱基对,那该序列必然会,被特定的限制酶识别并切割,这个特定的限制酶能识别,CTGAGGA "
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