下列关于幽门梗阻的描述不正确的是（）。 A.振水音 B.胃型蠕动波 C.呕吐后腹胀可

已知方程（a-2）x^|a|-1+4=0是一元一次方程，则a=______，x=______．

Today, due to numerous medical and scientific advances, people are living longer than ever before. But you have to be good to your body, mind, and soul. The following tips are a good start for getting you on your way to living a long and healthy life.

Eat a balanced diet -- one that is rich in fruits, vegetables, whole grains, and fiber and low in saturated fat, trans fat, and cholesterol. A well-balanced diet can provide your body with the essential nutrients needed to achieve and maintain optimum (最佳的) health.

Be physically active -- try to incorporate 30 minutes of activity into your day, every day. The options are endless; start walking on the beach in the mornings, try jogging with a friend, or go for a bike ride in the afternoons. Make sure you choose activities that you enjoy, so that you'll be more likely to make them a habit.

Get regular preventive check-ups --see your doctor regularly; remember your doctor is your partner in health care. By having regular check-ups, you may be able to catch small problems before they become big ones.

Be safe - use common sense and be streetsmart (适应都市生活的). Don't put yourself in situations that are questionable. Always wear your seatbelt and bike helmet. Don't go for a run,   walk, or jog at night by yourself. Keep your home well lit and free of things that could make you fall.

Stay in touch with family and friends -- get to know your neighbors. Take the time to be involved with your community. By creating a strong social network, you will not only have friends to celebrate with when good things happen, but also a support system in difficult times.

Keep a positive attitude -- studies have shown that people who have a positive attitude tend to live longer, and lead healthier and happier lives. Try to find the humor in life. And remember to laugh.

小题1:What would be the best title for the passage?  (No more than 10 words.)

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小题2:Please explain the underlined word “tips” in English (No more than 5 words) 

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小题3:Why do we need to get regular check-ups? ( No more than 10 words.)

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小题4:What should you pay attention to when doing activities? ( No more than 15 words.)

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小题5:What should you do to keep a positive attitude? ( No more than 10 words.)

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在施工缝处继续浇筑混凝土应待已浇混凝土强度达到（）

A.1.2MPa

B.2.5MPa

C.1.0MPa

D.5.0MPa

升入初中后，明明发现中学生的学习生活变化很大，不但需要学习的科目多，而且作业也多，老师讲课的节奏比较快，课堂学习的时间长……于是，他通过自觉调整学习习惯，采取一些较好的方法和策略。现在他已经逐步地适应了中学的学习生活。

请回答：

（1）中学生应当养成哪些良好的学习习惯？

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（2）哪些方法和策略会帮助你提高学习成绩？

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（3）请你写出一句话与明明共勉，激励他更好地珍惜学习时光。

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生物反馈治疗适用于（）

A.抑郁症

B.神经症

C.精神分裂症

D.躁狂症

E.精神发育不全