住宅小区暗管弯曲敷设时，其路由长度应小于15m，且该段内不得有S弯，弯曲如超过（）时，应加装过路箱。
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What is a key differentiator between a DS8700 and DS8800 for a customer looking for a high capacity solution at the lowest cost（）
A. DS8700 supports SATA drives
B. DS8800 supports more physical drives
C. DS8700 supports 2.5" disk drives
DS8800 supports 4Gbps FC drive
表明注射用油中游离脂肪酸的多少（）
A. 酸值
B. 碘值
C. 皂化值
D. 水值
E. 碱值
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