A good that is excludable but not rival is known as a club good

【填空题】Troubleshooting Engineer 1: Hey, Amy. Were you able to complete that systems test? Engineer 2: I was actually just making a report on the results. Engineer 1: Great. So what were you looking at? Engineer 2: A few people complained that their （1） were slow. So I used several metrics to test both the speed and capacity of the （2）. Engineer 1: What metrics did you use? Engineer 2: I started with the central （3） unit. I tested it for execution time and throughput. Engineer 1: Good thinking. What did you find? Engineer 2: Well, there's good news and bad news. Engineer 1: What's the good news? Engineer 2: The throughput is still fairly high. The computer still processes large amounts of （4） in a short amount of time. Engineer 1: Well, that is good. We need the computers to process instructions quickly. Engineer 2: However, there were some disappointing areas of （5）. Engineer 1: I thought there might be. Engineer 2: Yes. I found that the system CPU time slowed down significantly. Engineer 1: The background system must not be functioning properly. Engineer 2: That's what it looks like. I'm recommending further diagnostic tests.

A、值得被拯救

B、必须拯救

A、Regocijo

B、No se trabaja

C、Arte

D、

A、absolute direction

B、left and right

C、front and behind