关于设备、工具、器具购置投资完成额计算方法，以下说法不正确的是（）。

A.需要安装的设备应在设备正式开始安装以后才能计算投资完成额

B.不需安装的设备、工器具一般在运到建设单位仓库或指定地点，即可计算投资完成额

C.虽已付款，但尚在运输途中或上级管理部门的仓库内的设备，不应计算投资额

D.某些制造期较长的设备，其投资可按合同规定分期付款，分期计算投资完成额

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.

The key to SNMP (76) is its simplicity. It has a small command set that does a good job of collecting information from (77) any network device. In a SNMP environment, (78) of the work is handled by the network management system. Devices that are being managed are not (79) with processing (80) that might affect their performance.

（76）是（）

A. many

B. almost

C. a lot of

D. nearly