关于促胃液素的叙述,正确的是()。 A.产生促胃液素的细胞存在于胃体和胃底黏膜内 B

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问题:

关于促胃液素的叙述,正确的是()。

A.产生促胃液素的细胞存在于胃体和胃底黏膜内

B.蛋白质消化产物及HCl是引起促胃液素释放的主要因素

C.促胃液素对壁细胞有很强的刺激分泌作用

D.促胃液素的最小活性片段是其N端的4个氨基酸

E.切除胃窦的病人,促胃液素分泌不受影响

考点:临床执业医师综合临床执业医师考前冲刺模拟试题(2)第二单元
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当a______时,方程(a2-1)x2+3ax+1=0是一元二次方程.

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若关于x的不等式|x+2|+|x-1|<a的解集为空集,则a的取值范围是(  )
A.(3,+∞)B.[3,+∞)C.(-∞,3]D.(-∞,3)
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About 1,000 students were having a final exam in a huge lecture hall. Obviously the teacher wasn’t very well liked, who kept shouting out how much time was left. During the exam he was so  36   going around the room making sure that nobody   37  . He asked the students to pile the   38   tests on the huge desk. This made for quite a mess(混乱).

Anyway, everyone needed a fairly good   39  . Many students did poorly when rushed.  40of the students thought that he must get a good grade, so he went on when the professor said “  41   down and check up your exam sheets”.

Five   42   turned into ten, ten into twenty, twenty into forty … almost an hour   43   the test was over, our friend finally put down his pencil,   44   up his work, and headed to the front to present his final. The whole time, the professor sat there,   45   waiting for the student to complete.

“What do you think you are doing?” It was clear that the professor had   46   only to give the student a   47   time.

“Turning in my exam,” replied the student confidently.

“I’m afraid I have some bad   48   for you,” the professor gloated(幸灾乐祸), “Your  49 is an hour late. You’re FAILED it. And I’ll see you next term when you   50   my course.”

The student smiled slyly(狡诈地)   51   asked the professor, “Do you know who I am?” “No,” cried out the professor   52  .

The student   53   the professor right in the eyes and said slowly, “I didn’t think so,” so he lifted up one of the   54   half way, put his test neatly into the center of the pile, let the pile fall  55   his test in the middle, turned around, and walked out of the huge lecture hall.

36.A.kind                       B.busy                       C.strict                      D.serious

37.A.cheated                   B.failed                            C.slept                       D.passed

38.A.written                   B.succeeded               C.unfinished               D.completed

39.A.teacher                   B.friend                     C.grade                      D.paper

40.A.All                         B.One                        C.None                      D.Each

41.A.pencils                   B.papers                    C.hands                     D.books

42.A.students                  B.minutes                  C.sheets                     D.piles

43.A.if                           B.though                    C.before                    D.after

44.A.gathered                 B.brought                  C.sent                        D.made

45.A.strangely                B.excitedly                 C.anxiously                D.curiously

46.A.promised                B.managed                 C.waited                    D.worked

47.A.easy                       B.hard                       C.long                       D.good

48.A.information            B.result                      C.advice                    D.news

49.A.exam                      B.time                       C.arrival                    D.turn

50.A.accept                    B.repeat                     C.learn                      D.begin

51.A.and                        B.but                         C.so                          D.however

52.A.cruelly                   B.calmly                    C.angrily                   D.firmly

53.A.searched                 B.hit                         C.blamed                   D.looked

54.A.hands                     B.eyes                       C.desks                      D.piles

55.A.changing                B.burying                  C.improving               D.sticking

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在编辑过程中,没有“签订出版合同”这个环节的出版物是()。

A.图书

B.期刊

C.音像制品

D.电子出版物

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PAM装置50%的AM溶液进入溶解罐的温度是15-25℃。

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