问题 单项选择题 A1/A2型题

雄激素能够增加何种物质水平,有助于肝脏清除胆固醇()。

A.乳糜微粒

B.极低密度脂蛋白

C.低密度脂蛋白

D.中密度脂蛋白

E.高密度脂蛋白

答案

参考答案:E

解析:肝脏的脂代谢受到机体内分泌系统的调节和控制,许多激素对肝脏脂代谢有影响。肝素和胰岛素可增加脂肪的分解;胰岛素、甲状腺激素和生长激素都可以使肝脏合成胆固醇增加;胰高血糖素、糖皮质激素、前列腺素可减少肝脏内胆固醇的合成;雌激素能增加血浆高密度脂蛋白的水平,有助于肝脏清除胆固醇,而雄激素和孕激素可降低血浆高密度脂蛋白的水平。

填空题

根据中文解释和所给词语的适当形式填空,每空一词。

1. The experience destroyed his trust and personal __________ (尊严).

2. We will prepare for our departure as soon as we get the ____________ (approve).

3. 在你方便的时候请过来.

    Please come _________ ________ _________.

4. With IT development rapidly, new   _____ (数字的) products come out one after another.

5.别碰那些蛋糕,那是为客人准备的.

   ___ the cakes ____. They're for the guests.

6. 他为自己被宣布成为智力竞赛冠军得主的事感到十分兴奋.

    He was so excited ______ _____ ______ the winner of the talent competition.

7. The house is ______ (在……对面) the church, and you can't miss it.

8. Bread made of this kind of flour is very _____ (taste).

9. The two nations will cooperate on research and development of energy _____ (conserve).

10. The jazz concert is held ______ (每年) in July.

11. As a teacher, he often ______ (调整)his teaching methods to the needs of slower children,

      which makes him popular among them.

12. You can't resist the _______ (购买) of many unneeded things once you are in a supermarket.

13. Have you made ______ (准备) for the coming examination?

14.His aunt recommended he _______ (代替)salt for sugar.

15.The color of his skin is _______ (无关) to whether he is a good lawyer.

16. He got into a situation _______ it is hard to decide what is right and what is

     wrong. (定语从句关系词)

17.The sports shoes _____ (comfort) to wear are worth buying.

18.The army managed to keep the population of the _____ (occupy) country under control for

     a few months, and then trouble began to break out.

19.I have also tried to pass along its message to those I love and those who are _____ ____ _____ (需要) encouragement.

20. It's _____ _____ _____ (由他决定) to decide whether or not to go on the trip.

问答题 简答题