Pathogenesis of Black Pigment Gallstones

The major initiating event is an increase in conjugated bilirubin secretion. Deconjugation produces unconjugated bilirubin. The extreme insolubility of calcium bilirubinate promotes precipitation. In conjunction with calcium-binding protein, mucin promotes formation of black pigment gallstones.

#医学生Medic[超话]##medicaltalks#

#黑龙江财经学院[超话]##龙财关注##四级#
之前官博君给大家整理了开头段常用句型，现在中间段来啦，收好哦。 (*^▽^*)
中间段常用引出优缺点:
…plays an important role in…
……对……很重要。
The advantages of … lies in many ways.
……有许多优点/好处。
… as is the case with many issues, has both merits and demerits.
正如许多事物一样，……也是既有优点又有不足。

GPA平均学分绩点

You probably know that we've traditionally used letter grades to assess students in the United States. These include an "A" grade for those who do very well. "B" and "C" grades are for those who do good to average. Those who get a "D" or "F" grade typically do not pass the course.

These grades are translated into numbers, which make up a GPA. The highest grade point average is 4.0, and is for students who receive all A grades. This system may sound complicated.

How are students assessed in your country? Do they get a letter grade, or a number from 1 to 5? Perhaps, they receive a percentage.