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【判断题】
斯蒂芬—玻耳定律:黑体单色辐射极大值所对应的波长与其绝对温度成反比。A.
正确
B.
错误
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举一反三
【判断题】Such sentence as “She sells sea shells on the seashore, and shells she sells on the seashore are all sea shells I am sure. “ is called a tongue twister .
A.
正确
B.
错误
【单选题】Sea shells _____ as money at some time or another over the greater part of the Old World.
A.
had been used
B.
are used
C.
would be used
D.
would have been used
【简答题】Salt, shells or metals are still used as money in out-of-the-way parts of the world today. Salt may seem rather a strange (31)____ to use as money, (32)_____ in countries where the food of the people ...
【单选题】Salt, shells or metals are still used as money in out-of-the-way parts of the world today. Salt may seem rather a strange 【B1】 to use as money, 【B2】 in countries where the food of the people is mainly...
A.
object
B.
article
C.
substance
D.
category
【简答题】Last summer vacation, my family and I went to Qingdao by train. There was always sunshine and 1 、 ______ (新鲜的) air, which made us so 2 、 _____ (舒适的) . We went to the seaside, the sea was as blue as th...
【单选题】It is a truth ________ acknowledged that when one has gained material wealth, he'll surely seek for spiritual enjoyment. [ ]
A.
partly
B.
universally
C.
particularly
D.
previously
【单选题】When (imaginable) scientists (first) suggested the possibility that one person (could speak) directly to another (over) a long distance, few people took them seriously.
A.
imaginable
B.
first
C.
could speak
D.
over
【简答题】To the untrained eye, one bucket of beach sand looks much like another but mixed into the multitude of microscopic minerals are carbonate chemicals left behind from the shells of long-dead sea creatur...
【单选题】When one has to be faced with some trouble, a ____ person is more likely to handle it in a relaxed way.
A.
humorous
B.
nervous
C.
careless
D.
stupid
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