花的主要功能是供人欣赏…______．
一朵完整的花包括花柄、花托、萼片、花瓣、雌蕊（花柱、柱头和子房）和雄蕊（花药、花丝），雄蕊的花药中含有许多花粉粒，雌蕊的子房中含有一枚或数枚胚珠，雌蕊和雄蕊与果实和种子的形成有直接关系，它们是花的主要结构，花具有艳丽的花冠，能美化环境，有芬芳的花香和甜美的花蜜，借此招引昆虫，帮助它们传粉，有的花也可以提取香料和作为药物，但主要作用是产生果实和种子．
故答案为：×．
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Question: Before graduation, I decided to be a useful man for our country. However, when I applied for some positions, I was turned down. Only then did I realize it was not easy to achieve my dream. 1 Now I even don’t have the courage to try a new position. How can I find the power to continue my dream? Answer: I can understand the situation you are in. You feel your life lacks the power that you want and the motivation that you need. 2 By training your thoughts to concentrate on the bright side of things, you are more likely to have the incentive (动机) to work towards on your goals. 3 Your life can be improved, and your happiness enriched when you choose to change your views. Don’t leave your future to chance, or wait for things to get better mysteriously alone. 4 Begin to build your confidence, and work through problems rather than avoid them. Remember that power is not just about control over situations, but the ability to deal with whatever comes your way. Always believe that good things are possible, and remember that mistakes can be lessons that lead to discoveries. Take your fear and transform it into trust. 5 Turn your “worry hours” into “productive hours”. You will see beautiful things happen when you allow yourself to experience the joys of life.
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