它开发了一个系统，用于保证只有购买合法版权的用户才能获得安全升级，以把盗版软件用户排除在外。
It established a system ensuring that security updates go only to legitimate buyers rather than those with pirated copies.
为此，应加强对乡村医生处方行为的监管，规范其用药行为，保证农民以较低的价格获得安全、有效的医疗服务。
So we should strengthen the management of the prescription behavior of rural doctors, and make the behavior criterion, and guarantee the lower price and safer medical service to peasants.
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