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 added5 “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．the teacher clicln5t fully understand his answer
D．his answer didn’t show his knowledge of physics小题2:We know from the passage that______
A．the student knew the expected answer
B．the administrator told Bohr the height
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．students should be given more freedom in thinking
D．teachers should make students use physical formulas小题4:What was Bohr’s attitude toward his schooling?
A．Optimistic.
B．Critical.
C．Approving.
D．Ambiguous.
sin100πt （V）的 正弦交流电源，图中电流表内阻不计．副线圈接入“110V，60W”灯泡一只，且灯光正常发光．下列说法正确的是（ ）
/22 A