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【简答题】
笛声
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题目标签:
笛声
参考答案:
参考解析:
刷刷题刷刷变学霸
举一反三
【判断题】机车鸣笛声属于听觉信号
A.
正确
B.
错误
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【单选题】号笛的笛声,组与组声号的间隔时间约为()。
A.
Is
B.
2s
C.
4s
D.
s
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【单选题】Some of the most popular attractions across America are the many free concerts offered to public throughout the year. These involve not only amateur performers, but professional artists as well. The p...
A.
have the necessary facilities
B.
call attract more visitors
C.
want to serve the public
D.
are in a position to invite musicians
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【判断题】“短声”指历时约1秒的笛声。()
A.
正确
B.
错误
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【单选题】开始出现区别笛声和铃声的年龄为
A.
2个月
B.
1岁
C.
2岁
D.
18个月
E.
3岁
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【单选题】机车、自轮运转特种设备的鸣笛声属于( )信号。
A.
夜间
B.
昼夜通用
C.
昼间
D.
听觉
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【简答题】【名词解释】笛声结怨
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【简答题】口哨声;汽笛声
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【简答题】Some of the most popular attractions across America are the many free concerts offered to the public throughout the year. These involve not only performers, but professional artists as well. T...
查看完整题目与答案
【单选题】机车、动车组、自轮运转特种设备等的鸣笛声属于( )。
A.
听觉信号
B.
视觉信号
C.
机车信号
D.
臂扳信号
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