Negative superhelix of DNA

1、负超螺旋（negative superhelix）

负超螺旋（negative superhelix）

2、A apparent B desirable C negative

A apparent B desirable C negativeAD plausible

3、Jealousy is another negative issue.（）

Jealousy is another negative issue.（）A妒忌心无助于解决问题。B嫉妒心也会带来负面影响。C嫉妒是另一个负面的问题。D吃醋只会导致负面的结果。

4、A negative metacentric height（）.

A negative metacentric height（）.Awill always cause a vessel to capsizeBshould always be immediately correctedCalways results from off-center weightsDAll of the above are correct

5、A negative metacentric height （）.

A negative metacentric height （）.Ashould always be immediately correctedBwill always cause a vessel to capsizeCalways results from off-center weightsDAll of the above are correct

6、阴性预测值(negative predictive value)

阴性预测值(negative predictive value)