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【单选题】
本工程电梯井机房采用的隔声材料有( )A.
50厚GRC圆板
B.
轻集料混凝土
C.
60厚矿棉板
D.
50厚超细玻璃棉
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A.
expect
B.
intend
C.
manage
D.
fail
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A.
independent
B.
confident
C.
reliable
D.
flexible
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A.
respectable
B.
respectful
C.
respective
D.
respecting
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A.
humour
B.
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C.
modest
D.
reliable
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A.
incredible
B.
confidential
C.
reliable
D.
flexible
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