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【简答题】
请仔细阅读以下关于某传输系统的技术说明、状态转换图及Java程序，根据要求回答问题1～问题2。 [说明] 传输门是传输系统中的重要装置。传输门具有Open(打开)、Closed(关闭)、Opening(正在打开)、 StayOpen(保持打开)和Closing(正在关闭)5种状态。触发状态的转换事件有click、complete和timeout3种。事件与其相应的状态转换如图7-16所示。 下面的[Java代码1]与[Java代码2]分别用两种不同的设计思路对传输门进行状态模拟，请填补代码段中的空缺语句。 [Java代码1] 请将以上[Java代码1]与[Java代码2]程序段中，(1)～(7)空缺处的语句填写完整。
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举一反三
【简答题】A．He rides a bike or drives a van to work. B．He had fewer problems than his counterpart in the city. C．He need not work if the weather is bad. D．He has to fight against erous dogs every day.
【多选题】有一包药材混合粉末，显微镜下观察有以下特征：梭形韧皮纤维，黄色及白色长圆形，不规则表石细胞；网纹导管；节状乳管碎片。该粉末中可能有
A.
白术
B.
党参
C.
黄芩
D.
龙胆
E.
木香
【单选题】听力原文： If a contemporary Rip Van Winkle had slept for forty years and awakened today, he would have to go back to school before he could understand a daily newspaper or a magazine. Many new words have ...
A.
Because many new words have been added to English.
B.
Because he was illiterate before he went to sleep years ago.
C.
Because after the accident, he lost his memory.
D.
Because he was a Hungarian and couldn't read English.
相关题目：
【多选题】有一包药材混合粉末，显微镜下观察有以下特征：梭形韧皮纤维，黄色及白色长圆形，不规则表石细胞；网纹导管；节状乳管碎片。该粉末中可能有
A.
白术
B.
党参
C.
黄芩
D.
龙胆
E.
木香
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