问题
填空题
彩信（MMS）即多媒体短信。彩信业务以（）为载体，通过移动通信的数据网络，传送包括文字、图像、声音、数据等各种多媒体格式的信息。
答案
参考答案：WAP
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彩信（MMS）即多媒体短信。彩信业务以（）为载体，通过移动通信的数据网络，传送包括文字、图像、声音、数据等各种多媒体格式的信息。
参考答案：WAP
"Eyes are windows of the soul." Everyone knows the 36 of the eyes. 37 more and more students are becoming near-sighted(近视). So how to protect the eyes is still a serious problem. Here is some advice on 38 protect your eyesight(视力). You should not keep your eyes 39 for a long time. When reading, you should keep the books about a foot away from you. After reading for an hour 40 two, you 'd better have a 41 by looking into the distance(远处). You must remember not to read in dark light or in 42, not to read on a moving bus or in bed. Doing eye exercises will help 43 to protect your eyesight. In a 44 , to keep 45 eyesight, we must have good studying habits.
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