题目内容

线偏振光通过1/4波片后，不可能产生（）。

A. 线偏振光；
B. 圆偏振光；
C. 椭圆偏振光；
D. 部分偏振光。

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一辆汽车以10m/s的速率沿水平路面直线前进，当司机发现前方事件后开始紧急刹车，以加速度-0.2m/s2做匀减速运动，则刹车后一分种汽车的位移是（）。

A. 30m；
B. 240m；
C. 250m；
D. 360m。

在LS耦合下，两个等价P电子能形成的原子态是（）。

A. 1D，3D；
B. 1P，1D，3P，3D；
C. 1D，3P，1S；
D. 1D，3D，1P，3P，1S，3S。

Dear Sirs, I am writing to confirm the loss of my credit card (信用卡). I telephoned your office earlier today. The details of my card are as follows. It is an Apex Silver card in the name of Paul Anderson. The credit card number is 5431 7602 2597 8413. I have had an Apex card since 1994. This card is valid (有效的) from August 2003 to August 2005. I lost the card yesterday at about 8:30 in the evening. The only case I used the card yesterday was to buy three dictionaries at the Dillons Bookstore in Oxford Street. By accident, I left the card at the shop. When I realized what I had done, I telephoned the shop, but the shop assistants there could not find the card. Could you please cancel my card immediately and make the necessary arrangements to issue a replacement card to me I can be contacted at the telephone number of 347-4587-9056. Thank you for your assistance. Yours faithfully, Paul Anderson What does the man ask the company to do about the lost cardHe asks the company to issue ______________to him.

若只用绝热方法使系统从初态变到终态，则（）。

A. 对于联结这两个态的不同绝热路径，所做的功不同；
B. 对于联结这两个态的所有绝热路径，所做的功都相同：
C. 由于没有热量的传递，所以没有做功；
D. 系统的总内能将随不同的路径而变化。