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【单选题】
余弦函数 y=cosx 是( )函数
A.
偶函数
B.
奇函数
C.
非偶函数
D.
既是奇函数又是偶函数
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【判断题】测量误差是由于仪器本身误差、观测误差、外界自然条件影响、三方面的原因产生的。()
A.
正确
B.
错误
【单选题】The everyday objects recorded and collected by the successors to the first explorers may reveal ______.
A.
where these objects came from
B.
how they rotted in a tropical climate
C.
a glimpse of the Incan civilization
D.
the vicissitude of Amazon cultures
【多选题】练习shadowing影子跟读的两种方式是?
A.
Phonemic shadowing
B.
Sentence shadowing
C.
Continued shadowing
D.
Phrase shadowing
【单选题】指出下列哪种是人工自动免疫?( )
A.
注射丙种球蛋白
B.
输抗体
C.
从母体经胎盘得到抗体
D.
从初乳得到IgA
E.
自家菌苗注射
【简答题】Do the shadowing practice based on the example text used in the introduction to shadowing video.
【单选题】Do they _______ volleyball _______? [     ]
A.
plays; everyday
B.
plays; every day
C.
play; everyday
D.
play; every day
【简答题】What is shadowing?
【单选题】What are the shadowing programs?
A.
The shadowing program is designed for students who are exploring their career options.
B.
The shadowing program is designed for students who are wishing to learn more about a particular field or position.
C.
Work shadowing programs allow you to follow an engineer through their day.
D.
All of the above
【单选题】根据本视频,水波纹的效果是那种动画实现的:
A.
弯弯曲曲
B.
衰减波
C.
弹簧
D.
正弦波
【判断题】职业许可最终决定权在行政机关但其考试的组织可以由行业组织来实施。
A.
正确
B.
错误
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