問題文
An audit lead reads two places in the same overview. The first says what becomes of a figure once it is written, even where it is a mistake. The second says the shape of proof for which the proof of work is held to be an apt answer. What does the overview give in each case?
選択肢
- What it says of such a figure is that it stays there for good, mistake or not, and the shape of proof for which it is effective is one easy to hit upon and hard to test after.
- What it says of such a figure is that it stays there for days, mistake or not, and the shape of proof for which it is effective is one hard to hit upon and easy to test after.
- What it says of such a figure is that it stays there for days, mistake or not, and the shape of proof for which it is effective is one easy to hit upon and hard to test after.
- What it says of such a figure is that it stays there for good, mistake or not, and the shape of proof for which it is effective is one hard to hit upon and easy to test after.