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【单选题】
下列说法错误的是:A.
从普通光源中获得相干光的方法有分波面和分振幅两种
B.
劈尖干涉实验中，当劈尖的夹角变小时，相邻条纹间的距离将变大
C.
在介质劈尖干涉实验中，产生的两束反射光光程差为2ne+λ/2，其中e是介质膜厚度，λ是光在该介质中的波长
D.
劈尖干涉条纹是等间距的
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【单选题】The author feels that______.
A.
the personalities of athletes produce violent confrontations
B.
athletes should not have to accept unnecessary physical abuse
C.
athletes' salaries are already too high
D.
athletes need higher salaries to compensate for their injuries
【单选题】The author feels that Americans lack______.
A.
understanding
B.
self-confidence
C.
a rebellious spirit
D.
self-control
【简答题】With a series of questions at the end of the text, the author _____. ［A］ feels uncertain of what his own opinion is ［B］ differentiates two conflicting views ［C］ criticizes the Bush Administration ［D］ ...
【单选题】Regarding the situation of psychological problems the author feels ______.
A.
concerned
B.
hopeless
C.
surprised
D.
disappointed
【简答题】About the future of the arts of reading the author feels ________. A) upset B) uncertain C) alarmed D) pessimistic
【单选题】About the future of the arts of reading the author feels ______.
A.
upset
B.
uncertain
C.
alarmed
D.
pessimistic
【单选题】Why the author feels shaky?
A.
Because she is cold.
B.
Because the teacher here is so mean.
C.
Because she has not got used to giving her own ideas，so she feels nervous.
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