题目:
()is used for receiving maritime safety information which is automatically printed by the receiver.
A.NAVETEX receiver
B.Search and Rescue Transponder
C.Emergency Position Indicating Radio Beacon
D.Digital selective calling
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:此事件过程是KeyPress事件过程,所以参数KeyAscii得值是键盘输入的 字符得ASCII码值,上述过程对输入得字符进行判断,如果其ASCII码大于65(大写字母 “A”)并小于122(小写字母“a”),则用星...