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【判断题】
良好的口腔共鸣可以使声音明亮结实、圆润动听。我们在发音时可以运用收紧双唇，使双唇贴近上下齿的方法，来提亮声音音色。可以通过嘴角微微上抬，让音色变得积极而动听。（ ）A.
正确
B.
错误
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举一反三
【单选题】We've had to build some cupboards to give us more ________ space.
A.
strategy
B.
impact
C.
storage
【单选题】The meeting___ to take place on Tuesday,but we've had to postpone it.
A.
have supposed
B.
will be supposed
C.
was supposed
D.
supposed
【单选题】We've had to ________ going to France because the children are ill.
A.
pound
B.
proceed
C.
postpone
D.
promote
【单选题】We've had to _________ our visit to London because Jim is ill.
A.
disturb
B.
progress
C.
focus
D.
cancel
【简答题】We've had to freeze the programme as we've run money out of. __________
【简答题】水粉颜料湿的时候,色的纯度就显得__________;颜料干后,色泽随之变__________。
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