题干

如图所示,2012 年11月20日,我国自行研制的歼﹣15舰载机,在“辽宁舰”上成功着舰和起飞,当舰载机降落时,为了使飞机能尽快停下来而不滑出跑道,需要放下尾部的挂钩,让挂钩钩住航空母舰上的阻拦索;同时,又为了防止没有钩住阻拦索而出现意外,舰载机着舰后需要保持起飞时的推力.下列关于“辽宁舰”和舰载机的说法中正确的是(   )

A:“辽宁舰”的惯性一定比舰载机大

B:“辽宁舰”的动能一定比舰载机大

C:当舰载机刚着舰没有钩住阻拦索时,舰载机受到的合力为零

D:舰载机起飞前后,“辽宁舰”受到的浮力不变

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A

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    As I grow up, I gradually know that life plays a very important role in my education I really wanted to achieve. What I mean is that life can teach you things no one else can. Luckily for you, it's time to have lessons of life. Pay attention and you can know what I call the school of life.
    Use Your Head
    You have to be smart to survive (生存) in this world. Anytime you need to make a move, stop and think. Obviously there will be times when you need to take action first, but if you've been taking the time to plan, you'll always make the right choice. Fail to plan, plan to fail.
    Set Your Goals
    In my team, if you don't finish the job well, we will fire you. Your goals should be on building a basic of solid and complete work. Make certain a list of what you have to do and start with the biggest and most difficult task. The key here is goals.
    Respect Your Superiors (上级)
    Your boss is in his position for a reason, no matter what you think of him. If he's not the best one, be patient—he'll be out of there soon. In the meantime, you have to respect him as your superior. That means following orders and closing your mouth. If you don't respect your boss, how will you expect the people under you to do the same?
    Keep Your Cool
    You should never let your emotions (情绪) control you. You should learn to keep calm. Never lose your cool when dealing in business, or it will ruin the whole thing.
    The school of life can be hard, but if you're smart and play your cards right, you can come out with an A+. Just treat every situation as a learning experience. I hope you've studied.