问题 不定项选择

如图所示,有A、B两个行星绕同一恒星O沿不同轨道做匀速圆周运动,旋转方向相同。A行星的周期为,B行星的周期为,在某一时刻两行星第一次相遇(即两行星距离最近),则

[ ]

A.经过时间,两行星将第二次相遇

B.经过时间,两行星将第二次相遇

C.经过时间,两行星将第一次相距最远

D.经过时间,两行星将第一次相距最远

答案

BD

多项选择题
阅读理解

阅读理解。

     He was her best friend's boyfriend. It sounds like a lifetime TV movie. Back in high school in Chicago, Sue

Napolitano and Larry McNevin were just friends. They wore jackets and were always sitting on the bridge

smoking. But neither gave the other a romantic thought. In fact, asked to describe each other back in those

days, Sue and Larry both came up with the adjective:"nice". 

    On Sept.11, 2004, after 35 years, the high school friends were about to find out how nice "nice" could be.

Larry was looking for another friend with whom he went to high school through Classmates.com, a service

that reconnects high school friends through e-mails. That friend suggested he call Sue.

     Then Larry and Sue talked from the topics of music to food and found they shared similar tastes. After that,

they both ran to their closets to dig out their yearbooks to find the other's picture.

     With that one call, Sue, who divorced (离婚) in 1985 after five years of marriage, and Larry, who divorced

in 1997, began calling and e-mailing each other daily. A month later Sue flew to Chicago. Larry and Sue hugged

and cried when they met at the airport. They were like two lovers separated for years.

     On April 11, 2005, while the two were in Las Vegas, they got married. After the wedding, Larry said it make

more sense for him to move to Phoenix, since he planned on retiring to some place warm, and few places are

warmer. They now live in Phoenix and are surprised how high school friends found their way back together

after 35 years.

1. When Sue and Lorry were in high school, ____.

A. Sue was Larry's girlfriend

B. they felt it was nice to stay together

C. they both liked lifetime TV movies

D. they always had romantic ideas with each other

2. On Sept.11, 2004, Larry was surfing at Classmates.com with the purpose to _____.

A. search or his girlfriend

B. look for how to reconnect Sue

C. seek advice about marriage

D. search for another schoolmate

3. According to the passage, the climate in Phoenix is probably _____.

A. cold

B. warm

C. wet

D. dry

4. After so many years, Sue and Larry got married, which they both felt ____.

A. amusing

B. foreseeable

C. amazing

D. impossible