皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【多选题】
下列关于射线声学声强基本公式的描述，正确的有（　 ）
A.
声强基本公式为：
B.
声强基本公式体现了声线管束变化引起声强的变化
C.
声强基本公式体现了介质声吸收引起声强的变化
D.
声强基本公式体现了海面海底声反射引起声强的变化
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【判断题】让幼儿每天用冷水洗手洗脸，冲淋双脚，可以提高幼儿对冷刺激的抵抗力，预防感冒。
A.
正确
B.
错误
查看完整题目与答案
【判断题】让幼儿每天用冷水洗手洗脸,冲淋双脚,可以提高幼儿对冷刺激的抵抗力,预防感冒。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Why does the author mention Father Christmas and the four horses of the Apocalypse'!
A.
To draw a parallel between the two.
B.
To show how fat people on earth are.
C.
To introduce the health risks in obesity.
D.
To make the text interesting.
查看完整题目与答案
【单选题】并励直流电动机的励磁绕组与( )并联。 A、电枢绕组 B、换向绕组 C、补偿绕组 D、稳定绕组
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【简答题】直流电动机按照主磁极绕组（又称励磁绕组）与电枢绕组连接方式的不同可分为[填空1]、[填空2]、[填空3]
查看完整题目与答案
【单选题】相同的形态按一定规律反复出现,能形成( )
A.
短于
B.
长于
C.
等于
D.
都不对
查看完整题目与答案
【单选题】Why does the son think that his father is a tedious oddity?
A.
Because his father is the only parent who corrects his child's English.
B.
Because his father doesn't like grammar.
C.
Because he is allergic to his father's English.
D.
Because he is tired of listening to his father and doesn't like grammar.
查看完整题目与答案
【单选题】直流他励电动机需要反转时,一般将( )两头反接。 A、励磁绕组 B、电枢绕组 C、补偿绕组 D、换向绕组
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【单选题】Why does the son think of his father as a “tedious oddity”?
A.
Because his father is particular about how people talk about their travel experience.
B.
Because his father hardly chats with him about daily life.
C.
Because his father is very old-fashioned.
D.
Because his father talks a lot about grammar rules.
查看完整题目与答案
【简答题】Why does the son think that his father is a tedious oddity?A. Beacuase his father is a very good language teacher, he likes listening to his father and is absorbed in grammar rules. B. Because he is t...
查看完整题目与答案
相关题目：
【判断题】让幼儿每天用冷水洗手洗脸，冲淋双脚，可以提高幼儿对冷刺激的抵抗力，预防感冒。
A.
正确
B.
错误
查看完整题目与答案
【判断题】让幼儿每天用冷水洗手洗脸,冲淋双脚,可以提高幼儿对冷刺激的抵抗力,预防感冒。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Why does the author mention Father Christmas and the four horses of the Apocalypse'!
A.
To draw a parallel between the two.
B.
To show how fat people on earth are.
C.
To introduce the health risks in obesity.
D.
To make the text interesting.
查看完整题目与答案
【单选题】并励直流电动机的励磁绕组与( )并联。 A、电枢绕组 B、换向绕组 C、补偿绕组 D、稳定绕组
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【简答题】直流电动机按照主磁极绕组（又称励磁绕组）与电枢绕组连接方式的不同可分为[填空1]、[填空2]、[填空3]
查看完整题目与答案
【单选题】相同的形态按一定规律反复出现,能形成( )
A.
短于
B.
长于
C.
等于
D.
都不对
查看完整题目与答案
【单选题】Why does the son think that his father is a tedious oddity?
A.
Because his father is the only parent who corrects his child's English.
B.
Because his father doesn't like grammar.
C.
Because he is allergic to his father's English.
D.
Because he is tired of listening to his father and doesn't like grammar.
查看完整题目与答案
【单选题】直流他励电动机需要反转时,一般将( )两头反接。 A、励磁绕组 B、电枢绕组 C、补偿绕组 D、换向绕组
A.
1
B.
2
C.
3
D.
4
查看完整题目与答案
【单选题】Why does the son think of his father as a “tedious oddity”?
A.
Because his father is particular about how people talk about their travel experience.
B.
Because his father hardly chats with him about daily life.
C.
Because his father is very old-fashioned.
D.
Because his father talks a lot about grammar rules.
查看完整题目与答案
【简答题】Why does the son think that his father is a tedious oddity?A. Beacuase his father is a very good language teacher, he likes listening to his father and is absorbed in grammar rules. B. Because he is t...
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题