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【单选题】
波在传播过程中遇到障碍物时,能绕过障碍物的边缘,在障碍物的阴影继续传播,这种现象叫做波的衍射。关于衍射,以下说法不正确的是:A.
衍射现象是波动的主要特征之一
B.
当波长与障碍物或的线度相当能观测到比较明显的衍射现象
C.
波长较长的波衍射本领更强
D.
声音和可见光相比更容易观测到可见光衍射
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【单选题】Part II Reading Comprehension American researchers found females are the more talkative sex because of a special “language protein” in the brain. The study, compiled by neuroscientists and psycholog...
A.
the achievement in the field of sex difference
B.
the benefit and harm of the Foxp2 protein
C.
the differences and similarities between men and women
D.
the reason why females are more talkative than males
【简答题】Fill in the blank with the correct form of the verb given in brackets. Take thewords virtuous and virtual , for example. Both words ______ (come) from the word virtue , butthey had different suffixes ...
【多选题】艾宾浩斯的遗忘曲线表明了
A.
识记后是会发生遗忘的
B.
识记后是不会发生遗忘的
C.
遗忘是先慢后快的
D.
遗忘是先快后慢的
E.
遗忘是先多后少的
F.
遗忘是先少后多的
【简答题】翻译: 1. Yet along with this feeling had come a deep sense of belonging to a national community. 2. He had, in other words, an acute dollars-and-cents stake in the continued growth and development of hi...
【简答题】阅读理解 On the third Sunday in June, Americans take time to recognize and thank a special person in the family — fathers! Father's Day celebrates the importance of fathers, young and old and the men tho...
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