【单选题】
A <{p}><{font _mstmutation="1" _msthash="20557" _msttexthash="84279065"}>允许3块砖或砌块出现严重泛霜；<{/font}><{br/}><{/p}>
B <{p}><{font _mstmutation="1" _msthash="20561" _msttexthash="67144246"}>允许3块砖或砌块出现轻微泛霜<{/font}><{br/}><{/p}>
C <{p}><{font _mstmutation="1" _msthash="20562" _msttexthash="36200710"}>不允许出现中等泛霜<{/font}><{br/}><{/p}>
D <{p}><{font _mstmutation="1" _msthash="20563" _msttexthash="79849731"}>每块砖或砌块不允许出现严重泛霜。<{/font}><{br/}><{/p}>
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