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【单选题】

哪种动物听到的声音频率比人更低?

A.
B.
海豚
C.
蝙蝠
D.
题目标签:频率比声音音频
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】音频中的浊音是?

A.
で だ ば
B.
て ば だ
C.
た ば た
D.
で は ば

【单选题】[音频] question 12: What is the best thing about iPads according to the couple?

A.
They ma k e f or exce 11 ent entertamment.
B.
They are useful for the annual family vacat10n.
C.
They keep children at different age levels occupied.
D.
The y are helpful when going to the grocery store.