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计算机网络主要由网络硬件设备、()、网络操作系统、服务器、工作站等组成，

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An Invitation for Joint Research 邀请进行合作研究 Write an e-mail of about 100 words based on the following situation: Professor Chen is going to spend one year away from his institution to pursue research in atmospheric science. You want to invite him to join your research group. You can offer him some facilities. Do not sign your own name at the end of the e-mail. Use "Professor Id" instead. Do not write the address.

银行受理代客外汇买卖时，必须预先收取相应的货币保证金，其买卖的损益和汇率的风险由客户承担，银行只收取代办手续费或差价。()

贷款到期(含展期)60天尚未收回的，其应计利息纳入表外处理。()

Inquiring about Admission 询问入学情况 Write an e-mail of about 100 words based on the following situation: You applied to Central Washington University for admission 3 months ago, but have not received a reply. Now write an e-mail to inquire about your admission. Do not sign your own name at the end of the e-mail Use "Li Ming" instead. Do not write the address.