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1.銆愬柈閬搞€戣嚜琛岃ō(sh猫)瑷�(j矛)鐨勬柦宸ョ従(xi脿n)鍫存秷闃插共绠＄洿寰戜笉鎳�(y墨ng)灏忎簬( )mm銆�

A.50

B.75

C.100

D.150

2.銆愬柈閬搞€戞煇鑷ㄦ檪鐢ㄦ按鏀鑰楁按閲廇=1.92L/s锛岀缍�(w菐ng)姘存祦閫熷害V=2m/s锛屽墖瑷�(j矛)绠楁按绠＄洿寰慸鐐�( )銆�

A.25mm

B.30mm

C.35mm

D.50mm

3.銆愬閬搞€戠稜鑹叉柦宸�“鍥涚瘈(ji茅)-鐠�(hu谩n)淇�”涓殑“鍥涚瘈(ji茅)”鎸�( )銆�

A.绡€(ji茅)鍦�

B.绡€(ji茅)鏉�

C.绡€(ji茅)闆�

D.绡€(ji茅)姘�

E.绡€(ji茅)鑳�

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