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【判断题】
植物性香料只能从植物的提取。
A.
正确
B.
错误
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【单选题】听力原文:Doesn't this television come in a smaller size? (A) Yes, but I have to check the inventory list. (B) No, I don't think the size matters. (C) This television is very old-fashioned. (34)
A.
B.
【简答题】A.She'd like to watch television with the maul B.The mall shouldn't waste his time watching television C.The man should watch a different program D.The television program doesn't start until later in ...
【单选题】A: What's on ___________ television tonight? B: Let me turn on ___________ television first. [     ]
A.
the, the
B.
a, the
C.
/, the
D.
the, /
【单选题】어제부터 머리가 아프( ) 배도 아픕니다.
A.
이
B.
C.
까지
D.
에서
【单选题】Most radio and television stations in the United States are commercial stations, that is to say, they earn their money from【61】or commercials. Private companies purchase radio and television【62】from t...
A.
products
B.
programs
C.
produce
D.
governments
【多选题】发生多普勒效应必须具备的基本条件( )
A.
有声源与接收体
B.
没有回声或回声太弱
C.
声源与接收体产生相对运动
D.
有强的反射源与散射源
E.
声源与接收体两者均处于静止状态
【多选题】发生多普勒效应必须具备的基本条件包括()
A.
有声源与接收体
B.
没有回声或回声太弱
C.
声源与接收体产生相对运动
D.
有强的反射源与散射源
E.
声源与接收体两者均处于静止状态
【单选题】发生多普勒效应必须具备的基本条件()
A.
有声源
B.
有接收体
C.
声源与接收体产生相对运动
D.
有强的反射源与散射源
E.
以上均是
【多选题】发生多普勒效应必须具备的基本条件
A.
有声源与接收体
B.
没有回声或回声太弱
C.
声源与接收体产生相对运动
D.
声源与接收源两者处于静止状态
【单选题】She didn't have a television a radio. [     ]
A.
or
B.
and
C.
but
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