现场签证是指发包、承包双方现场代表就施工过程中涉及的责任事件所作的签认证明，其范围包括( )等。

A．工程变更导致的工程企业管理费增减

B．适用于施工合同范围以外零星工程的确认

C．确认修改施工方案引起的工程量或费用增减

D．符合施工合同规定的施工单位原因引起的工程量或费用增减

E．非施工单位原因导致的人工、设备窝工及有关损失

The task at hand now is to (56) the programmers who still use yesterday’s software technology to solve today’s software problems. Object-oriented programming requires a new attitude toward problem (57) . Problem (57) with computer system becomes more natural. Application can (58) be translated into (59) . Although it is commonly believed that it will be easier to train new programmers to use object-oriented techniques than to (60) programmers who have substantial experience in applying conventional programming language constructs.

（58）是（）

A.indirectly

B.directly

C.smoothly

D.quickly