1、（）is an open , distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way.

A、Internet of things

B、Blockchain

C、Edge computing

D、Artificial intelligence

信管网解析：

（）是一个开放的、分布式的分类账，可以高效、可核查和永久地记录双方之间的交易。

A、物联网

B、块链

C、边缘计算

D、人工智能

信管网参考答案：B

2、（）are those costs that cannot be directly traced to a specific project and therefore will be accumulated and allocated equitably over multiple projects by some approved and documented accounting procedure.

A、Direct costs

B、Operation costs

C、Indirect costs

D、Implement costs

信管网解析：

（）这些费用是否无法直接追溯到某一具体项目，因此将由某些经核准和有文件记录的会计程序在多个项目中加以累积和公平分配。

A、直接费用

B、业务费用

C、间接费用

D、执行成本

信管网参考答案：C