阅读下面短文，请从每小题所给的A、B、C、D四个选项中选出最佳选项，并回答问题。

C

    Once upon a time，there was a king who had gone to visit neighboring kingdoms．He was gifted a pair of baby parrots by the king of the last kingdom where he was visiting．They were the most beautiful birds that he had ever seen．so，after returning to his kingdom，he called for a bird trainer and asked him to train parrots．

    The king also set up a place in the palace garden for the parrots．He often looked at them from his palace window．As time passed，one day the trainer came to the palace and told the king that though one of the parrots was flying high in the sky，the other one was not moving from its branch since the day it had arrived．

    When hearing this,the king summoned the best trainer from all his land and the nearby kingdoms．They came quickly and tried their best, but none of them could make the parrot fly!He even asked his courtiers to try to find a good way to make the parrot fly but they all failed．The parrot was not moving from his branch at all．Finally，after trying everything，the king thought to himself："Perhaps I need someone who may be more familiar with natural habitat．"He asked his courtier to get a farmer from the countryside and take him to the parrot to see if he could understand the problem with the parrot．

    The next morning，the king was surprised to see the parrot flying high above the palace gardens．He asked his servant to call that farmer to meet him．The servant quickly went and found the farmer．The farmer came and stood before the king．The king asked him，"How did you make the parrot fly?" With his hands folded with respect，the farmer said to the king，"It was very easy．I just cut the branch where the bird was sitting．"

最大的一位数和最小的两位数相加的和是____。

图是广东省东莞市三类产业的从业人口比例柱状图，据图回答下列三题。

已知函数 $f\left(x\right)=2\cos x\left(\cos x+\sqrt{3}\sin x\right)+a\left(a\in R\right)$ ．

根据短文内容，选择最佳答案。
    “Did you hear what happened to Adam Last Friday?” Lindsey whispers to Tori.
    With her eyes shining, Tori brags, “You bet I did, Sean told me two days ago.”
    Who are Lindsey and Tori talking about? It just happened to be yours truly, Adam Freedman. I can tell you that what they are saying is (a) not nice and (b) not even true. Still, Lindsey and Tori aren't very different from most students here at Linton High School, including me. Many of our conversations are gossip(闲话). I have noticed three effects of gossip: it can hurt people, it can give gossipers a strange kind of satisfaction, and it can cause social pressures in a group.
    An important negative effect of gossip is that it can hurt the person being talked about. Usually, gossip spreads information about a topic-breakups, trouble at home, even dropping out-that a person would rather keep secret. The more embarrassing or shameful the secret is, the juicier the gossip it makes. Probably the worst type of gossip is the absolute lie. People often think of gossipers as harmless, but cruel lies can cause pain.
    If we know that gossip can be harmful, then why do so many of us do it? Theanswer lies in another effect of gossip: the satisfaction it gives us. Sharing the latest rumor(传言) can make a person feel important because he or she knows something that others don't. Similarly, hearing the latest rumor can make a person feel like part of the “in group.” In other words, gossip is satisfying because it gives people a sense of belonging or even superiority(优越感).
    Gossip also can have a third effect: it strengthens unwritten, unspoken rules about how people should act. Professor David Wilson explains that gossip is important in policing behaviors in a group. Translated into high school terms, this means that if everybody you hang around with is laughing at what John wore or what Jane said, then you can bet that wearing or saying something similar will get you the same kind of negative attention. The dos and don'ts conveyed through gossip will never show up in any student handbook.
    The effects of gossip vary depending on the situation. The next time you feel the urge to spread the latest news, thing about why you want to gossip and what effects your “juicy story” might have.