为多余选项。
If you're like most people, you're too busy eating pizza to stop and consider how it arrived on your kitchen counter. So why don't pizzas arrive in round cardboard boxes?
It's mostly because the pizza industry doesn't really care to bother the cardboard industry.
That's because they can be made in one piece as well as neatly piled.
The advantage of making a round pizza box would mainly be aesthetic. But it's not going to save space over an edged box. It's just bad pizza management.
In the 1800s, street sellers carried pies in portable metal containers that kept them warm. When pizza started rising in popularity in postwar America, pizzerias used a single piece of cardboard as support and then slipped the pie into a paper bag. Eventually, corrugated (瓦楞纸的) cardboard kept a fine balance between retaining heat without tapping too much moisture.
Will we ever see a radical rethink of the pizza box? Some people have tried. In 2010, Apple fled for a patent for a round pizza container with holes so moisture can escape. It's used in the company's food courts. Another company, World Centric, designed a compostable round box in 2018 that can be used to reheat pizza. A similar product was test-marked by Pizza Hut in 2019.
A. The pizza box has changed over time.
B. Pizza wasn't always put in square cardboard.
C. Cardboard boxes are usually manufactured with edges.
D. Pizza boxes are designed in square for the benefit of deliverymen.
E. If piled vertically (垂直地), pizzas run the risk of rolling out of place.
F. Think it long enough, though, and you may wonder why pies usually come in square boxes.
G. Although all the designs were claimed to keep pizzas warmer and crispier, none have become widespread.
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