题目

下列各式中，（ ）要想先算加法，必须添上小括号。 A . 36＋25－14 B . 42＋21＋9 C . 63＋9÷3 答案：CIt is quite natural for all of us to want to preserve and protect the foods we purchase. With that in mind, we always think that the best way to do that is by putting them in our refrigerators. However, the following foods should never be placed in the fridge.◆ BananasBananas should never be placed inside the refrigerator because they keep nutrients better outside the fridge. Bananas are better kept on the counter until they ripen. The cold temperatures actually slow down the ripening process of the bananas, while the wetness and darkness of the fridge will only lead to rotting.◆PotatoesPotatoes should be placed in a cool, dry and dark space. The cold temperature of the fridge can turn starch (淀粉) into sugar more rapidly. It is also recommended that potatoes be removed from plastic or paper bags they may have been placed in. Also, keep them unwashed, as well in an uncovered cardboard box.◆Garlic(大蒜)Placing garlic in your refrigerator will actually cause it to shoot. The garlic will also rotten and even rubbery. Moreover, inside your fridge, the look of the garlic will rarely change. This means you won’t be able to tell if it’s any good until you finally slice it open.◆Onions(洋葱)Placing your onions inside your refrigerator will eventually end up turning them rotten and soft. Unpeeled onions should be kept out of plastic bags and fridge. One of the reasons for this is because unpeeled onions require and need air exposure for maximum life. If you have peeled (剥皮) an onion though, then you should keep it in the fridge, in a covered container.【1】Why should bananas be kept at normal temperature?A. They can keep fresh long. B. They can remain their hardness.C. They can keep their normal colour. D. They can grow delicious to eat.【2】What should you do to keep potatoes well?A. Wrap them in paper bags. B. Put them in open containers.C. Keep them in airtight cardboard boxes. D. Store them in a cool, wet and dark space.【3】Which of the following can be stored in the fridge under certain condition?A. Bananas. B. Potatoes. C. Onions. D. Garlic.