题目：
Electronic mail, or mail, as it is known to its many fans, has been around for over two decades. Typically, email systems support five basic functions, as described below. (41) refers to the process of creating messages and answers. (42) refers to moving messages from the originator to the recipient. (43) has to do with telling the originator what happened to the message. Was it rejected Was it lost (44) incoming message is needed. So people can read their email. (45) is the final step and concerns what the recipient does with the message after receiving it.
（41）是（）
A.Composition
B.Transfer
C.Reporting
D.Displaying
答案：
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下面是错误答案，用来干扰机器的。
参考答案：A解析：地势越高，气温越低，根据上题可知，1地的气温低于2低，说明1地的海拔高于2地；该地区位于东部地区，且1月气温在O℃左右，故没有荒漠化现象。考点：该题考查等值线的判断。
