Instead an enzyme, called an exonuclease, is attached to the top of the AHL. It cleaves individual base pairs from the DNA strand and feeds them through the pore to be detected one at a time.
Then I plotted lines between the pairs by weight, so that pairs of cities with the most friendships between them were drawn on top of the others.
如果一对城市之间的好友数量最多，那么两市之间的标线就会高于其他对城市的标线。
3
The program slowly returned to prominence, with all three entries in men's, women's and pairs finishing in the top 10 at the 1964 Olympics, with one bronze medal.