●复制的方式 半保留复制(semi-conservative replication) ●复制的高保真性(high fidelity) ●双向复制(bidirectional replication) ●半不连续复制(semi-discontinuous replication) ⚫复制的方式 ——半保留复制(semi-conservative replication) ⚫复制的高保真性(high fidelity) ⚫双向复制(bidirectional replication) ⚫半不连续复制(semi-discontinuous replication)