题目

在如图所示的电路中，用滑动变阻器调节灯的亮度，若要求滑片P向右端滑动时灯逐渐变暗，则下列接法正确的是A. M接C，N接B     B. M接A，N接B        C. M接C，N接D           D. M接A，N接D 答案：ADo’s and Don’ts of DonatingGiving up your unused or unwanted stuff is a great way to make space in your home for the items that you do enjoy on a regular basis. 1.Here are 10 do's and don'ts of donating your belongings.Do Prep Your ClothesYou've thoroughly cleaned out your closets and drawers, and have a mountain of clothing waiting to be donated．Before you bag up these pieces, inspect each one to ensure that they’re in good condition. Make sure all buttons are accounted for, and that you can't see any stains. 2.Don’t Donate Damaged ItemsThe number one rule of donating your stuff is to make sure that it' s in good, useable condition. Don’t pass along clothes or furniture with rips(裂口) or stains, chipped dishes, books that are missing pages, or games with lost pieces. 3.Find a local company that will recycle these items instead.Do Donate More Than Just Clothes4. Stuffed animals, framed pictures, unused candles, small power tools, sports equipment, ornaments, baskets, blenders, dishes, glassware, utensils, silverware, pots and pans, curtains, blankets, toasters, mixers, pillows, towels, bed sheets, bikes, and exercise equipment are much sought after donations.5.With a little common sense it's easy to figure out items that are ideal for donation．But unfortunately some people will throw away the contents of their home without a second thought. As a gentle reminder, it’s never a good idea to donate car parts, flammable products, construction materials, weapons, or explosives.A．Nobody wants to inherit your damaged belongings.B．Food donations are always in need.C．Don’t Even Think of Donating These ItemsD．Not sure where to start?E．Don’t Donate Large AppliancesF．Clothes aren't the only household items that can be donated．G．Wash the items to make them fresh and ready for their new owner.