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deb .aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse ##测试版源 deb .aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse # 源码 deb-src .aliyun.com/ubuntu/ xenial main restricted universe multiverse
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deb-src .aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src .aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse ##测试版源 deb-src .aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse # Canonical 合作伙伴和附加 deb .canonical.com/ubuntu/ xenial partner
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