单色光通过两个偏振化方向正交的偏振片。在两偏振片之间放入一双折射晶片，在下述两种情形

发布时间：2018-01-21 14:39 │ 来源：www.tikuol.com

题型：单项选择题

问题：

单色光通过两个偏振化方向正交的偏振片。在两偏振片之间放入一双折射晶片，在下述两种情形中，关于能否观察到干涉花样的说法正确的是( )。
(1)晶片的主截面与第一偏振片的偏振化方向平行；
(2)晶片的主截面与第一偏振片的偏振化方向垂直。

A．(1)能，(2)不能
B．(1)不能，(2)能
C．(1)(2)都能
D．(1)(2)都不能

考点：注册土木工程师岩土工程基础知识基础知识

题型：单项选择题

阅读理解。

Read the following six advertisements and answer the questions for each of them.
Advertisements (广告)

HOUSE FOR SALE.
Comfortable family home with large garden on north side of town.
Three bedrooms, living room, kitchen, bathroom.
Offer over $ 35,000

ASSISTANT WANTED
for busy restaurant. Some evening and weekend work.
All meals free.
Ring 3320178

JOIN OUR FOOTBALL TEAM
Boys and girls wanted to play in local football team. Aged 9—13
Meet in Green Park on Fridays at 3 p.m.

ROOM FOR RENT
Small room to rent in city center flat above restaurant.
Newly painted with modern furniture. Near main railway station.
Buses pass front door. Phone 3322108

SEAVIEW HOLIDAY FLATS
Set in lovely gardens
5 minutes' walk from beach
children's playground
Enjoy your own cooking
MODERN KITCHEN IN EVERY FLAT

SEAVIEW HOTEL
Near sea and sands
beautiful ground
children welcome
THREE FIRST-CLASS RESTAURANT

1. The Browns are looking for a new house. Mr. Brown wants to live in the north of town near his
workplace. Mrs. Brown wants a house with four bedrooms. The Browns' children don't care what
the house is like as long as (只要) the garden is big enough.
Why didn't the Browns buy the house in the advertisement?

A. it was on the wrong side of the town.
B. There weren't enough bedrooms.
C. There was no dinning room.
D. The garden was too big.

2. Man: Why don't we rent (租、借) one of the Seaview Holiday Flats for our holiday, Mary? They
            sound just as good as the Seaview Hotel, and it would be much cheaper.
Mary: There's one big difference between the holiday flats and the hotel. The hotel would be much
             less work.
   Why would Mary rather stay at the hotel?

A. They wouldn't have to cook.
B. It's not so expensive.
C. She would enjoy the beautiful gardens.
D. It's near the sea.

3. Tom: There's a new football team standing in the village, Mum. I'm old enough to play in it. We
             stop school at half past three, so I'd have plenty of time.
     Mum: Well, I suppose you could do your homework later. But look, Tom, you haven't read the
              advertisement carefully. You can't possibly play for this team.
Why can't Tom play for the new football team?

A. He's not old enough.
B. Tom hasn't read the advertisement carefully.
C. School stops too late.
D. He has to do his homework

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   Man: Yes… Yes… that's all right. Oh, dear, no, I don't think it would do.
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A. It's too small.
B. The walls are the wrong colour.
C. The man likes old furniture better.
D. It's too noisy.

5. Ann has always wanted to work in a restaurant. She thinks they're exciting places. It's hard work
   but she isn't lazy. You have to work on Saturdays and Sundays but you get other days off. It's not
    very well-paid, but who cares about money?
    Why does Ann want to get the job in the restaurant?

A. It's an easy job.
B. The pay is good and the food is free.
C. She thinks it would be fun.
D. You get long holidays.

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