问题 单项选择题 A型题

主要用于稳定型心绞痛的药物是()。

A.硝苯地平

B.普萘洛尔

C.硝酸甘油

D.异山梨酯

E.维拉帕米

答案

参考答案:B

解析:

普萘洛尔用于稳定型和不稳定型心绞痛,尤其适用于伴有高血压或心律失常者。因冠状动脉上的β2受体被阻断后,α受体占优势,易致冠状动脉收缩,不宜用于变异型心绞痛。

解答题
完形填空

第二节:完形填(共20小题;每小题1.5分,满分30分)

阅读下面短文,掌握其大意,然后从21—40各题所给的四个选项(A、B、C和D)中,选出最佳选项。

Backpacking through Africa, I always carried some food with me  21   I couldn’t find something to eat.

I was  22   through a local market one day when I  23  upon a jar of   24  jam.I could find tins of apple and strawberry in every corner store but this was the first time I had seen peach.I took it.

For the next few weeks, when I was feeling the need for a little  25  , I would carefully  26   the lid and spoon a bit on to a biscuit.Mum, delicious.I didn’t   27  it with anybody.It sat safely in my  28  , taken out on only special  29 .

One cold and cloudy afternoon, while I was waiting for a local bus, it started to rain.Everybody scattered for  30  and so did I.But I was already wet through so I quickly searched through my pack for some   31   clothes.

In my hurry to  32  further discomfort, I forgot that the jar of jam was  33  in my clothing.One forceful yank(猛拉)and my  34   jar of jam crashed to the concrete ground, smashing into pieces.

I was so sad that I almost cried.And then, in the corner of my eye, I noticed an old woman in rags  35 .Without hesitating, she bent down and picked up the half of the jar that still looked   36 .

Still  37  , she stuck two fingers into the jar, scooped out the  38  jam and placed it into her toothless mouth.Carefully, like fish bones, she  39  the pieces of glass.She studied the broken container  40  she was certain that there was nothing left.Then she left.

My bus arrived shortly after and, as we drove off, I wondered if the jam would taste the same to me.

21.A.in order that    B.if            C.just in case      D.unless

22.A.looking       B.buying        C.getting        D.running

23.A.depended     B.chanced       C.discovered          D.got

24.A.apple          B.strawberry       C.orange        D.peach

25.A.meal           B.treat           C.rest          D.drink

26.A.remove       B.move          C.discover      D.uncover

27.A.divide         B.eat           C.share          D.enjoy

28.A.pocket        B.pack           C.corner         D.store

29.A.situations        B.conditions       C.atmosphere      D.occasions

30.A.protection       B.shelter        C.cover          D.warmth

31.A.beautiful     B.rain         C.warm          D.dry

32.A.avoid          B.get into       C.defeat         D.overcome

33.A.lying          B.buried         C.covered       D.locked

34.A.expensive        B.valuable      C.precious      D.priceless

35.A.reached       B.appearing        C.running       D.approaching

36.A.all right      B.nice            C.broken        D.fresh

37.A.standing up     B.looked down upon

C.bent over               D.watching out

38.A.delicious     B.remaining       C.extra           D.spare

39.A.swallowed       B.took out      C.ate up         D.spit out

40.A.until           B.unless         C.after               D.before