题干

甲、乙两人同时从同一起跑线出发,同向做匀速直线运动,某时刻他们的位置如图所示,右图中能正确反映两人运动距离与时间关系的是(   )

A:

B:     

C:

D:

上一题 下一题 0.0难度 选择题 更新时间:2019-02-12 11:37:57

答案(点此获取答案解析)

D

同类题1

阅读理解

    Here's a selection of festivals for tourists to the United States in summer.

San Francisco Silent Film Festival

    Films at this odd cinematic event have a variety of musical accompaniments, including piano and violin. It includes some classic silent movies. If you want to see them all, you can buy a festival pass.

May 29 to June 1; www.silent film. org

Union Street Festival

    This popular street fair stretches out over six blocks of the city, in the fashionable shopping area of Union Street. This year, there's beer, wine tasting and more separate themes–––fashion, cuisine, tech, locals craft, and health and fitness.

    June 7 to 10: www.unionstreetfestival.com

North Beach Festival

    This is San Francisco's oldest street party, with live entertainment, delicious food and arts and crafts. Situated in the Little Italy district, known for its associations with the “Beat Generation”, festival goers are guaranteed plenty of good Italian food. There is also as the “blessing of the animals”, a San Francisco tradition which takes place at the National Shrine of Saint Francis of Assisi (610 Vallejo Street) at 2 pm on both days of the festival

June 14 to 16; www.sfhorthbeach. org

Stern Grove Festival

    This is the oldest free summer arts festival of its kind in the United States, It includes a wide variety of acts, from the local symphony orchestra to well-known artists such as Smokey Robinson.

Sundays from June 22 to Aug 24; www.sterngrove. org

同类题5

根据短文理解,选择正确答案。

Dear John,

    My name is Amber and I want to share my story with you because what you've shared about life and positive energy has changed my life. This past year has been one of the hardest for me. I felt I was stuck in a position that had nothing to do with what I wanted to do with my life. In January, after two years of being together, my boyfriend left me.

    I read your blog every morning as I drink my coffee at work, but it wasn't until this March that I told myself "no more negativity" as you taught readers in your blog.

    Since then I've got into new habits at work to keep my energy positive. When people walk in the front door, I'm the first face they see, so I smile big when I say "good morning" to them, especially on Mondays. Instead of waiting for someone to ask me for help, I offer it with an open mind. The CEO noticed my change and offered me the executive assistant position that I wanted.

    One of the biggest things I've taken to heart from your blog is changing my opinions on my job. Yes, it was not an important position, but when I was passionate (热情的) about it, I could make my life fulfilling.

    All in all, I have to thank you somehow for having the passion to help others because it truly is inspiring to me. So thank you so much, John. My life has changed because your words pointed me in the right direction, Take care!

                                                 Sincerely ,

                                                     Amber