杜甫的《咏怀古迹五首其一》中写道:“羯胡事主终无赖,词客哀时且未还。”请问诗中的“羯胡”指的是谁?
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You are an experienced network administrator in an international corporation. One of your clients asks you to configure a network for a financial trading center which requires multiple high-value transactions. And the transactions are very important to the client. In such a situation, which two of the following are basic and most important requirements concerning the configuration? ()(Choose two.)
A. no single point of failure
B. determine which protocol to use
C. trading database server location
D. deterministic response to all failure
球结膜充血的起源为结膜血管。
A. 正确
B. 错误
与艾滋病病人共用卫生间不会传播艾滋病。
A. 正确
B. 错误
Vavilov将世界上栽培作物划分为()个起源中心。