フリー問題

問題文

A grocer's model scores a fixed extract of orders every night rather than as each order arrives, and separately the grocer sends a small share of its live orders to a new version to watch how it behaves. The team leader writes a note with two blanks. Line M has to name what the nightly scoring of a fixed extract is. Line N has to name what sending that small share is called. The grocer calls that small share a rehearsal of the new version. Which pair completes the note?

選択肢

1. The audit note enters the stream on line M and the rehearsal on line N.
2. The audit note enters the snapshot on line M and the canary on line N.
3. The audit note enters the stream on line M and the canary on line N.
4. The audit note enters the snapshot on line M and the rehearsal on line N.