计算：3tan30°-2sin60°+2tan45°．
题型：解答题
问题：
计算：3tan30°-2sin60°+2tan45°．
题型：解答题
阅读下面的短文，并根据短文后的要求答题（请注意问题后的字数要求
）
Everyone has got two personalities (性格)- the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you're awake because you can control your behaviour, but when you're asleep, your sleeping position shows the real you. In a normal night, of course, people frequently change their position. The important position is the one that you go to sleep in.
● If you go to sleep on your back, you're a very open person. You normally trust people and you are easily influenced by fashion or new ideas. You don’t like to upset people, so you never express your real feelings. You’re quite shy and you aren’t very confident.
● If you sleep on your stomach, you are a rather secretive person. You worry a lot and you're always easily upset. You're very stubborn, but you aren't very ambitious. You usually live for today not for tomorrow. This means that you enjoy having a good time.
●If you sleep on curling(蜷缩)up, you are probably a very nervous person. You have a low opinion of yourself and so you're often defensive. You're shy and you don't normally like meeting people. You prefer to___________________.
●If you sleep on your side, you have usually got a well-balanced personality. You know your strengths and weakness. You're usually careful. You have a confident personality. You sometimes feel anxious, but you don't often get depressed. You always say what you think even if it annoys people.
1. What is the best title of the passage? (Please answer within 10 words.)
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2. Which sentence in the passage can be replaced by the following one?
You always stick to your own opinion, but you don't have far-reaching goals.
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3. Please fill in the blank with proper words or phrases to complete the sentence.
(Please answer within 10 words.)
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44. Sleeping positions and personalities