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【判断题】
信号f(n)=cos3πt+sin2t是周期信号,且其周期为π。
A.
正确
B.
错误
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参考解析：
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【单选题】AE中同时能有几个项目工程处于开启状态?
A.
有2个
B.
只能有1个
C.
可以自己设定
D.
只要有足够的空间，不限定项目开启的数目
查看完整题目与答案
【多选题】服药之风引发的社会现象包括()。
A.
服饰上博带
B.
高屐
C.
裸袒
D.
脾气暴躁
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【多选题】影响禽群易感性的因素主要有( )。
A.
禽群的内在因素。
B.
禽群的外在因素。
C.
禽群的特异性免疫状态。
查看完整题目与答案
【单选题】只要有足够的空间,不限定项目开启的数目After Effects把图像或电影片断的尺寸限制在:( )
A.
30000×30000像素
B.
40000×40000像素
C.
50000×50000像素
D.
60000×60000像素
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world _______ since 1970 because of uncontrollable human activities.
A.
have perceived
B.
have vanished
C.
have cycled
D.
have derived from
查看完整题目与答案
【单选题】对普通货船最上一层首尾统长甲板的首要要求是:
A.
能承装货物
B.
抗风浪
C.
保证水密
D.
便于工作
查看完整题目与答案
【简答题】Shocking figures have shown that half of the animals in the world_____________ since 1970 because of uncontrollable human activities.
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world _________ since 1970 because of uncontrollable human activities.
A.
have disappeared
B.
have vanished
C.
have faded
D.
have missed
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world ________ since 1970 because of uncontrollable human activities.
A.
vanish
B.
vanished
C.
had vanished
D.
have vanished
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world ___________since 1970 because of uncontrollable human activities.
A.
have neglected
B.
have revived
C.
have vanished
查看完整题目与答案
相关题目：
【单选题】AE中同时能有几个项目工程处于开启状态?
A.
有2个
B.
只能有1个
C.
可以自己设定
D.
只要有足够的空间，不限定项目开启的数目
查看完整题目与答案
【多选题】服药之风引发的社会现象包括()。
A.
服饰上博带
B.
高屐
C.
裸袒
D.
脾气暴躁
查看完整题目与答案
【多选题】影响禽群易感性的因素主要有( )。
A.
禽群的内在因素。
B.
禽群的外在因素。
C.
禽群的特异性免疫状态。
查看完整题目与答案
【单选题】只要有足够的空间,不限定项目开启的数目After Effects把图像或电影片断的尺寸限制在:( )
A.
30000×30000像素
B.
40000×40000像素
C.
50000×50000像素
D.
60000×60000像素
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world _______ since 1970 because of uncontrollable human activities.
A.
have perceived
B.
have vanished
C.
have cycled
D.
have derived from
查看完整题目与答案
【单选题】对普通货船最上一层首尾统长甲板的首要要求是:
A.
能承装货物
B.
抗风浪
C.
保证水密
D.
便于工作
查看完整题目与答案
【简答题】Shocking figures have shown that half of the animals in the world_____________ since 1970 because of uncontrollable human activities.
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world _________ since 1970 because of uncontrollable human activities.
A.
have disappeared
B.
have vanished
C.
have faded
D.
have missed
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world ________ since 1970 because of uncontrollable human activities.
A.
vanish
B.
vanished
C.
had vanished
D.
have vanished
查看完整题目与答案
【单选题】Shocking figures have shown that half of the animals in the world ___________since 1970 because of uncontrollable human activities.
A.
have neglected
B.
have revived
C.
have vanished
查看完整题目与答案