题目选项分析

The broader, classical definition is that a service is an intangible something that cannot be touched or stored.

Yet electric utilities can store energy, and computer programmers save information electronically.

Thus, the classical definition is hard to sustain.

第二句和第三句的关系是：

The broader, classical definition is that a service is an intangible something that cannot be touched or stored.

Yet electric utilities can store energy, and computer programmers save information electronically.

Thus, the classical definition is hard to sustain.

第二句和第三句的关系是：