In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols. An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems. Typically, each deparlment or division has defined its own network needs (70) OS, LAN topology, communication protocols, applications, and other components.

A. consolidates B. consists
C. considerate D. consoles

如果劳务的开始和完成分属不同的会计期间，且企业在资产负债表日提供劳务交易结果不能可靠估计的，此时，企业应当正确预计已经发生的劳务成本能否得到补偿，分别以下( )情况处理。

A．已经发生的劳务成本预计全部能够得到补偿的，应当按照已经发生的能够得到补偿的劳务成本金额确认提供劳务收入，并按相同金额结转劳务成本

B．已经发生的劳务成本预计只能部分得到补偿的，应当按照能够得到补偿的劳务成本金额确认收入，并按已经发生的劳务成本结转劳务成本

C．已经发生的劳务成本预计全部不能得到补偿的，应当将已经发生的劳务成本计人当期损益，不确认提供劳务收入

D．已经发生的劳务成本预计全部不能得到补偿的，应当将已经发生的劳务成本计入当期损益，按照预计可收回金额确认提供劳务收入