苹果公司创始人、前总裁，号称“创新天才”的乔布斯逝世，消息公布后其竞争对手的公司股价纷纷上涨，而苹果公司股票为防止猛跌而暂停交易。这蕴含的经济道理是（）
①股份公司股票可以自由上市买卖
②股票投资收益具有很大的不确定性
③公司总裁变化对本公司股票价格起决定作用
④股票收益和公司经营状况密切相关
A、①②
B、②③
C、②④
D、③④
参考答案：C
解析：
【考点】公司经营与公司发展；股票
【分析】题中①说法错误，只有上市公司的股票可以上市自由买卖，故排除；题肢③说法错误，因为公司的经营状况才是对本公司股票价格最直接的影响因素，故排除；题肢②④说法正确且符合题意，故本题答案选C。
Lulu is a brave pet in our shelter. As you know, there are a lot of forest fires during the summer season. Many forests are badly damaged by fire each year. Not far from our shelter, a forest caught fire during this hot summer. We were in a heat wave which had been 31 for three days. Lulu rushed towards the forest where flames sent out a terrible 32 ．I no longer had any hope that Lulu would come back to the shelter．In fact, I was waiting for the firemen to announce his 33 in the forest, when suddenly, a fireman burst into my shelter and informed me that my dog Lulu had 34 to save four kittens(小猫) who were trapped by the flames．According to the fireman, Lulu seized the kittens, one by one moving them to a safe place．I immediately accompanied(陪同) the fireman to the forest to 35 the rescued kittens．When we arrived 36 the scene of the incident, we found Lulu was not there. Then we heard the 37 of a dog from the forest barking furiously (猛烈地). I recognized it was my dog Lulu．The fireman followed the tracks of the dog until we found him barking 38 by the side of an injured fireman who was lying on the ground and desperately(绝望地) waiting for rescue．Thanks to Lulu, four kittens and a fireman were saved. That day, I was very proud of Lulu for his two heroic(英雄的) 39 toward the kittens and the fireman．Lulu showed much compassion (同情) for both animals like him and for a human being who was trying to 40 the fire with his colleagues(同事)． This true story of genuine(真的) love and compassion shows us that pets are loving, caring and considerate(考虑周到的)．We should love and protect them．One day they could do us a good turn.
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