循环水系统水量如何调整？

监督职能是监事会的本质工作，如果借助外部机构协助开展审计工作，所需费用由监事会自行承担。（）

A. 正确
B. 错误

You are the administrator of your company’s network. An employee named Mark is leaving the company. A new employee named Eric has been hired to replace him. Mark has a local user account on a Windows 2000 Professional computer. Mark has rights to multiple files and folders on the computer. You want Eric to have the same rights and permissions that Mark has. You want to ensure that Mark will no longer have access to the files and folders. You want to accomplish this with least administrative effort. What should you do?（）

A. Rename Mark’s user account to Eric and change the account password.
B. Create Eric’s account by copying Mark’s profile to Eric’s account. Delete Mark’s account.
Create Eric’s account by copying Marks account. Delete Mark’s account.
Delete Mark’s account. Add Eric’s account. Add Eric to the same groups to which Mark belonged. Grant Eric to all the individual user rights and permissions that Mark had.

黄庭坚主张“（）”“（）”

论述柯达伊教学法中幼儿歌唱教学的三个要点及准确音调歌唱的三个条件是什么？

有源应答器设置于车站进、出站端，当列车通过应答器时，应答器向列车提供（）信息。

A. 线路速度、线路坡度等
B. 接车进路参数、临时限速等
C. 列车定位等
D. 闭塞分区长度、线路速度、线路坡度、列车定位等

某投资方案的年营业收入为100万元，年营业支出为60万元，其中折旧为10万元，所得税率为4 0 %，则该方案每年的营业现金流量为（）。

生物接触氧化法同活性污泥一样，也需要污泥回流装置。

A. 正确
B. 错误

You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network?（）

A. There are 254 usable subnets.
B. There are 256 usable hosts per subnet.
C. There are 50 usable subnets.
D. There are 254 usable hosts per subnet.
E. There are 24 usable hosts per subnet.
F. There is one usable network.