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【多选题】
材料孔隙率增大时,则材料的性能如何变化?A.
强度降低
B.
密度降低
C.
密度提高
D.
密度降低
E.
强度提高
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反馈参考答案：
举一反三
【单选题】Music in fact is a language of a non-verbal nature which is rich in expression.
A.
commonly
B.
universe
C.
universal
D.
universally
【单选题】Music in fact is a language of a non-verbal nature which is rich in expression.
A.
universe
B.
universal
C.
university
D.
universally
【单选题】Extending host-to-host delivery to process-to-process delivery is called transport-layer ( ) and ( ).
A.
multiplexing and de-multiplexing
B.
storing and forwarding
C.
forwarding and filtering
D.
switching and routing
【简答题】.Music in fact is a language of a non-verbal nature which is rich in expression.
【单选题】--- _________ it is to be a host! --- I agree.
A.
What a great fun
B.
How great fun
C.
What great fun
D.
How great a fun
【单选题】Music in fact is a language of a non-verbal nature which is rich in expression.
A.
common
B.
universal
C.
universe
D.
usual
【单选题】Music in fact is a ____ language of a ono-verbal nature which is rich in expression.
A.
universe
B.
university
C.
universal
D.
universally
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