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【单选题】
音频又称声频是人耳所能听见的（）。
A.
声音
B.
频率
C.
声波
D.
波段
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举一反三
【单选题】刺激声频率耳声发射（）。
A.
以稳态单个纯音信号为刺激声
B.
用两个不同频率但相互间有一定频比关系的长时程纯音为刺激源
C.
以单个短声或短音等短时程声讯号为刺激源
D.
用两个相同频率但相互间没有一定频比关系的长时程纯音为刺激源
E.
以单个长声或长音等长时程声讯号为刺激源
【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.
【单选题】[音频]23.What were originally used as ice skates?
A.
Animal bones.
B.
Iron blades（刀刃）.
C.
Steel blades.
D.
Wooden blades.
【单选题】Part I Listening Comprehension (1%*25=25%) Section A Directions: In this section, you will hear t hree n ew s reports . At the end of each new s report , y ou will hear two or three questions . Both t...
A.
Most of their schools are closed for two months.
B.
They need meaningful programs to improve health.
C.
A lot of them are getting less to eat during school days.
D.
They depend on schools for meals on weekdays.
相关题目：
【单选题】刺激声频率耳声发射（）。
A.
以稳态单个纯音信号为刺激声
B.
用两个不同频率但相互间有一定频比关系的长时程纯音为刺激源
C.
以单个短声或短音等短时程声讯号为刺激源
D.
用两个相同频率但相互间没有一定频比关系的长时程纯音为刺激源
E.
以单个长声或长音等长时程声讯号为刺激源
【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.
【单选题】[音频]23.What were originally used as ice skates?
A.
Animal bones.
B.
Iron blades（刀刃）.
C.
Steel blades.
D.
Wooden blades.
【单选题】Part I Listening Comprehension (1%*25=25%) Section A Directions: In this section, you will hear t hree n ew s reports . At the end of each new s report , y ou will hear two or three questions . Both t...
A.
Most of their schools are closed for two months.
B.
They need meaningful programs to improve health.
C.
A lot of them are getting less to eat during school days.
D.
They depend on schools for meals on weekdays.
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