2019涓礆(j铆)娑堥槻瑷�(sh猫)鏂芥搷浣滃摗姣忔棩涓€绶�5.28
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鐩搁棞(gu膩n)鎺ㄨ枽锛�2019娑堥槻鍝¤€冭│蹇呯湅鐭ヨ瓨(sh铆)榛�(di菐n)鍖附
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(B)甯跺欢閬插櫒鐨勬按鍔涜閳存噳(y墨ng)鍦�15s鍏�(n猫i)鐧�(f膩)鍑哄牨(b脿o)璀﹂埓鑱�锛屼笉甯跺欢閬插櫒鐨勬按鍔涜閳存噳(y墨ng)鍦�5~90s鍏�(n猫i)鐧�(f膩)鍑哄牨(b脿o)璀﹂埓鑱�;澹撳姏闁嬮棞(gu膩n)鎳�(y墨ng)鍙婃檪(sh铆)鍕�(d貌ng)浣�锛屽苟鍙嶉淇¤櫉(h脿o)銆傜郴绲�(t菕ng)鎺掑嚭鐨勬按鎳�(y墨ng)閫氶亷鎺掓按瑷�(sh猫)鏂藉叏閮ㄦ帓璧�銆�
(C)鎵撻枊闁ラ杸鏀炬按锛屾按鍔涜閳村櫞鍢磋檿澹撳姏涓嶆噳(y墨ng)灏忎簬0.05MPa锛屼笖璺濇按鍔涜閳�3m閬�(yu菐n)铏曡閳磋伈鑱插挤(qi谩ng)涓嶆噳(y墨ng)灏忎簬20dB銆�
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(A)鏈瑭︽按瑁濈疆鍜岃│姘撮枼鐨勫畨瑁濅綅缃噳(y墨ng)渚夸簬妾㈡煡銆佽│椹�(y脿n)銆佹搷浣�锛屽苟鎳�(y墨ng)鏈夌浉鎳�(y墨ng)鎺掓按鑳藉姏鐨勬帓姘磋ō(sh猫)鏂�銆�
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3銆佸父瑕嬬殑姘i珨婊呯伀绯荤当(t菕ng)鍏呰婊呯伀浠嬭唱(zh矛)鐨勪笉鍚岀当(t菕ng)鏈塤_____
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(D)楣典唬鐑锋粎鐏郴绲�(t菕ng)
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5銆佹寜瑁濋厤褰㈠紡鍙互鍒嗙偤______
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(B)鍏ㄦ饭娌掓粎鐏郴绲�(t菕ng)
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绛旀锛欰BC AC ABCD AD CD
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