试题与答案

影响人的发展的因素主要有()、()、()。

题型:填空题

题目:

影响人的发展的因素主要有()、()、()。

答案:

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参考答案:对

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阅读理解。

                              

     Ticket Code (代码) Number:       100

     Name:                                       WEST 

     Movie:                                       MONKEY KING

     Show date:                                August 20, 2008

     Show time:                                6: 30 P M

     No of seats:                               3

     Seats:                                       14 15 16

     Total amount:                            Rs. 75

     Please bring print (打印) -out of the email when you come for the show and exchange it for tickets

at the reservation counter (门票预订处). Please come half an hour before the show.

1. What may "WEST" be?

A. A theatre's name.

B. A movie's name.

C. A person's name.

2. What can we learn from the form?

A. A man wanted to sell his movie tickets.

B. A man ordered tickets.

C. A movie theatre made an advertisement.

3. How did the man buy the tickets?

A. By ordering them on the Internet.

B. By going to the theatre.

C. By ordering them over the phone.

4. How much does each ticket cost?

A. 100.

B. 25.

C. 75.

5. The man that received the e-mail was asked to _____. 

A. exchange the email for tickets before the movie begins

B. arrive at the movie at 6: 30 am on August 20, 2008

C. get some presents for free by taking a printed copy of the e-mail

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题型:单项选择题 A3/A4型题

X线胶片特性曲线是描绘曝光量与所产生的密度之间关系的一条曲线,由于这条曲线可以表示出感光材料的感光特性,所以称之为"特性曲线"。特性曲线的横坐标为曝光量,以对数值lgE表示;纵坐标为密度,以D表示。特性曲线由足部、直线部、肩部和反转部组成。足部密度的上升与曝光量不成正比,曝光量增加逐渐很多,密度只有较小的增加。直线部密度与曝光量的增加成正比,密度差保持一定,此时曲线沿一定的斜率直线上升。肩部密度随曝光量的增加而增加,但不成正比。反转部随曝光量的增加密度反而下降,影像密度呈现逆转。特性曲线可提供感光材料的本底灰雾(Dmin)、感光度(S)、对比度(γ)、最大密度(Dmax)、宽容度(L)等参数,以表示感光材料的感光性能。

X线摄影中应力求利用特性曲线的()

A.肩部

B.翻转部

C.直线部

D.足部

E.平行部

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