[求助]RC on real test

I have a couple of questions about RC portion on the real test:

1. How will the RC passage/question appear on the screen? Is it a split screen with passage on the left and questions on the right? If so, will the question appear one at a time or all questions on the same passage will appear at the same time? To paraphrase, will I be able to preview the questions before reading the passage?

2. I have been working on OG for a while. Are the passage/question more difficult than OG? On OG there are quite a number of passages of just 25-30 lines. Will passages on the real test be that short? Actually, will the 50-line passage in OG still be 50 line on the test? or longer? shorter?

Thanks!