世界上第一次有商业性导游陪同旅游团是在（ ）。 A．1841 B．1845 C．18

沿x轴负方向传播的简谐波在t=0时刻的波形如图所示．已知波速是10m/s，图上质点P的平衡位置为x=17m，则质点P至少再经过______s到达波峰．

Life comes in a package. This package includes happiness and sadness，failure and success，hope and despair. Life is a learning process. Experiences in life teach us new lessons and make us a better person. With each passing day we learn to deal with kinds of situations．

Love

Love plays an important role in our life. Love makes you feel wanted. Without love a person could become cruel. In the early stage of our life，our parents are the ones who show us with unconditional love and care, they teach us about what is right and wrong，good and bad.

Happiness and Sadness

Happiness achieved by bringing a smile on others face gives a certain level of fulfillment．Peace of mind makes you feel happy. No mind is happy without peace. We realize the true worth of happiness when we are sad．

Failure and Success

Success brings in money，fame，pride and self-respect. Failure is the way to success, and it helps us to touch the sky，teaches us to survive and shows us a specific way. Here it becomes very important to keep our head on our shoulder．

Hope and Despair

Hope is what keeps life going. Parents always hope their children will do well．Hope makes us dream．Hope builds in patience．Life teaches us not to despair even in the darkest hour，because after every night there is a day. Life teaches us not to regret over yesterday, for it has passed and is beyond our control．Tomorrow is unknown, for it could either be bright or dull. So what we can choose is to work hard today，so that we will enjoy a better tomorrow.

小题1: In the passage，the author compares life to ___________

A．package

B．happiness and sadness

C．failure and success

D．hope and despair小题2:What does it in the passage 4  mean ?

A．success

B．failure

C．sky

D．way小题3:What’s the general meaning of the last sentence of the whole passage?

A．What you only can choose is to work hard everyday.

B．If you work hard today, you will have a better life in the future．

C．When choosing between "today”and “tomorrow”, you’d better enjoy tomorrow better.

D．Enjoying a better tomorrow is your only choice．小题4:What’s the purpose of the passage?

A．To encourage people to love each other．

B．To tell people how to deal with happiness and sadness．

C．To remind people of keeping having a beautiful dream．

D．To give readers some information about life.

This is _____ pen. [ ]

A. my a

B. the my

C. a my

D. my

以一定单位的本币为基准来计算应收或应付多少外币的汇率表示方法是()

A、直接标价法

B、间接标价法

C、美元标价法

D、欧元标价法

医院健康教育本身就是重要的（）。

A.医疗手段

B.治疗手段

C.经济手段

D.服务手段

E.康复手段