If you can do it independently, 130 is even more important. Because there are new questions every year, 140 is also easy if you have a solid personal foundation and are skilled in doing the questions.

The content of the ten-year real question basically covers most of the test sites. If you can understand all the questions on the real questions and then do some exercises by yourself, it is not too much problem to get 100%.

The key is that you don't understand this until you read the answer, but you can really understand, know what the test center is and know how to solve the problem. This is the real understanding, and you can get 100 points.

I have read the whole book twice, but I can't figure out most of the questions myself, so I don't have time now, so I just want to find out the real questions carefully. Whether those questions can get a hundred points is not high enough for me. The more, the better.

If my answer helps you, remember to light it up and adopt it. Thank you!