皮皮学，免费搜题
登录
搜题
【简答题】
结构和物体有各自的(1)频率,当声波频率与其相同时,就会发生(2)现象。此时结构和物体振动最(3),能量损耗也最(4),因此,吸声系数在共振频率处为(5)。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】Listen and Fill in the blanks with what you hear. We are ____________ 450 case and we have people, offices here from ______different countries. T hey have __________ their cases to the table and we ar...
【简答题】二次检索指的是()。 A第二次检索 B只能检索两次 C在上一次检索的结果中，再一次进行的检索 D与上一次检索的结果进行对比，得到的检索
【简答题】listen and fill in the blanks Jessica and George have just demonstrated for us the basic idea of today’s l ecture -- that friendship between women is different from friendship between men. This is an ...
【简答题】Listen and fill in the blanks with the words you hear from the recording. Scientists and clothing ___1___ at Cornell University in the United States are working on fashion’s next big thing: “ ___2___ ...
【简答题】 慢速英语 : What Is 5G Wireless Technology? Listen carefully and fill in the blanks with no more t three words according to the passage below.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
