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【单选题】
强度为I的自然光垂直投射到一块理想偏振片上，当偏振片绕光传播方向转动时，通过偏振片的投射光强度：强度为I的自然光垂直投射到一块理想偏振片上，当偏振片绕光传播方向转动时，通过偏振片的投射光强度：A.
仍为 ，且不随偏振片的转动而改变
B.
为 ，且不随偏振片的转动而改变；
C.
最大值为 ，最小值为零
D.
最大值为 ，最小值为零
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【单选题】In the eyes of the author, an odd phenomenon nowadays is that ______.
A.
the Duchess of Windsor is regarded as a woman of virtue
B.
looking slim is a symbol of having a large fortune
C.
being thin is viewed as a much desired quality
D.
religious people are not necessarily virtuous
【单选题】飞机作等速直线飞行时,作用在飞机上的外载荷应满足()。
A.
升力等于重力，阻力等于推力。
B.
升力等于重力，抬头力矩等于低头力矩
C.
升力等于重力，阻力等于推力，抬头力矩等于低头力矩
【单选题】Which of the following is NOT one of the duke's complaints against the duchess in My Last Duchess?
A.
Riding a white mule
B.
Not being available to him at all times
C.
Innocence
D.
Not being able to distinguish the Duke's gift from common ones
【单选题】Which of the following interpretations of "My Last Duchess" is INCORRECT?
A.
The narrator is the Duke and the implied auditor is the matchmaker.
B.
The Duke exposes his flaws in personality through his monologue.
C.
The Duchess, in the eyes of the Duke, is naive, genial and lovely.
D.
The poem utilizes dramatic monlogue as the writing technique.
【单选题】飞机作等速直线水平飞行时,作用在飞机上的外载荷应满足()
A.
升力等于重力，阻力等于推力
B.
升力等于重力，抬头力矩等于低头力矩
C.
升力等于重力，阻力等于推力，抬头力矩等于低头力矩
【单选题】My last Duchess is __________.
A.
a dramatic monologue
B.
a short lyric
C.
a novel
D.
an essay
【简答题】法是由统治阶级的物质生活条件决定的,是社会客观需要的反映。( )
【简答题】下列属于企业非流动资产的是() A应收及预付款项 B存货 C持有至到期投资 D无形资产
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