哺乳动物血液的pH一般稳定在()A.6.55~7.00 B.6.90~7.80 C.

题型:单项选择题 A1型题

问题:

哺乳动物血液的pH一般稳定在()

A.6.55~7.00

B.6.90~7.80

C.7.00~7.45

D.6.55~7.55

E.7.35~7.45

考点:执业兽医考试动物生理学动物生理学题库
题型:单项选择题 A1型题

不属于前置胎盘特点的是()

A.强有力的宫缩必然会导致 * * 大量出血

B.子宫大小符合相应妊娠月份

C.常致胎位异常,胎先露高浮

D.耻骨联合上方可闻及胎盘杂音

E.大量失血可致胎儿缺氧,胎死宫内

题型:单项选择题 A1型题

One day, I received a call from a colleague. He was about to give a student a zero for his answer to a physical problem, while the student claimed a perfect score. I was elected as their arbiter( 仲裁人). I read the examination problem:“Show how it is possible to determine the height of a tall building with the aid of a barometer(气压计).” The student had answered:“Take the barometer to the top of the building,attach a long rope to it,lower it to the street,and then bring it up, measuring the length of the rope. The length of it is the height of the building. ”

The student had really answered the question completely ,but the answer didn’t confirm his competence in physics. I suggested the student try again. I gave him six minutes to answer the question, warning that the answer should show some knowledge of physics. Five minutes later, he said he had many answers and clashed off one, which read:“Take the barometer to the top of the building and lean over the edge of the roof. Drop the barometer, timing its fall with a stopwatch. Then, use the physical formula (公式)to calculate the height of the building. ”

At this point, my colleague had to accept it, and then the student made almost full marks. I couldn’t help asking the student what the other answers were. He listed many others and then added “Probably the best is to take the barometer to the administrator and said to him,' Sir, here is a fine barometer. If you tell me the height of the building, I will give it to you.,”

Then, I asked the student if he really did not know the conventional answer to this question. He admitted that he did,but said that he was fed up with high school and college instructors trying to teach him how to think.

The name of the student was Bohr who later was famous all over the world. He won the Nobel Prize for Physics in 1922.

小题1:The student got a zero at the beginning because_______.

A.the teacher wasn’t satisfied with him.

B.his answer wasn’t complete or correct

C.his answer didn’t show his knowledge of physics

D.the teacher didn’t fully understand his answer小题2:We know from the passage that______ .

A.the administrator told Bohr the height

B.the student knew the expected answer

C.the author preferred Bohr’s last answer

D.the teacher was a very stubborn person小题3:We can learn from the passage that______.

A.instructors can teach students how to think

B.arbiters can help students to get high scores

C.teachers should make students use physical formulas

D.students should be given more freedom in thinking小题4:What was Bohr’s attitude toward his schooling?

A.Critical

B.Optimistic

C.Approving

D.Ambiguous

题型:单项选择题 A1型题

AgN03固体见光或受热易分解,故用棕色试剂瓶保存.AgN03受热分解,放出的有刺激性气味的气体可能是(  )

A.S02

B.N02

C.NH3

D.N2

题型:单项选择题 A1型题

发行价格低于证券票面金额被称为()。

A.平价发行

B.折价发行

C.溢价发行

D.议价发行

题型:单项选择题 A1型题

锤击式粉碎机可从()方向进料。

A.切向

B.轴向

C.径向

D.A、B和C

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