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图示为手机无线充电装置，手机和充电板内部均安装了金属线圈，将手机置于通电的充电板上，便实现了“无线充电”。下列说法正确的是（ ）A. 无线充电的原理是电磁感应B. 将手机旋转一小角度放置，便不能充电C. 在手机和充电板间垫上几张A4纸，也能充电D. 充电板不论通人交变电流还是恒定电流均可充电After a while attention to Tom ended, and the usual school murmur（嗡嗡读书声）rose upon the boring air once more． Now the boy began to steal secret glances（偷看） at the girl． She noticed it， made a face at him and gave him the back of her head for the space of a minute． When she slowly faced around again, an apple lay before her． She pushed it away． Tom gently put it back． She pushed it away again， but with less animosity（敌意）． Tom patiently returned it to its place． Then she let it remain． Tom wrote on his paper， "Please take it-I got more．" The girl glanced at the words， but made no sign．Now the boy began to draw something on the paper， hiding his work with his left hand． For a time the girl refused to notice； but her human curiosity（好奇心） soon began to show itself by hardly noticeable（明显的） signs． The boy worked on， seemingly not aware． The girl made some non-committal（含糊的） efforts to see， but the boy did not display that he was aware of it． At last she couldn't bear it and whispered："Let me see it．"Tom partly uncovered the picture of a house with some smoke rising from the chimney（烟囱）． Then the girl's interest began to fasten itself upon the work and she forgot everything else． When it was finished， she gazed a moment， then whispered："It's nice-draw a man．"The artist created a man in the front yard； she was satisfied， and whispered："It's a beautiful man--now draw me in it．"Tom drew an hour-glass（沙漏） as the body， a full moon as her head and some arms added to it． The girl said："It's ever so nice-I wish I could draw． No one has ever taught me that．""It's easy，" whispered Tom， "I'll teach you．""Oh， will you？ When？""At noon． Do you go home to dinner？""I'll stay if you will．""Good-that's a deal． What's your name？"1.What probably happened in the classroom before this passage？A. The girl introduced herself to the boy．B. Something noticeable happened to the boy．C. They had a lesson on how to draw．D. The boy drew an apple for the girl．2.What most probably happened to the apple finally？A. Eaten by the boy because the girl didn't accept it．B. Eaten by the boy because it was the last one he had got．C. Eaten by the girl because they finally became friends．D. Eaten by the girl because the boy was drawing all the time．3.What can we learn from the 2nd paragraph？A. The boy didn't want the girl to show interest in his drawing．B. The girl didn't want to show interest in the boy's drawing noticeably．C. The boy didn't notice the girl trying several times to see his drawing．D. The girl didn't want the boy to do the drawing in class any more．4.What in this passage made Tom succeed in making friends with the girl？A. Using her curiosity．B. Showing off his drawing ability．C. Teaching her how to draw．D. Inviting her to dinner．