问题
填空题
一物体沿直线运动，前100m的平均速度为1m/s，后100m的平均速度为4m/s，则该物体在200m内的平均速度为 m/s．
答案
1.6
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一物体沿直线运动，前100m的平均速度为1m/s，后100m的平均速度为4m/s，则该物体在200m内的平均速度为 m/s．
1.6
| 阅读理解。 | ||||
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| 1．You are 26 years old and want to be a teacher. You should apply to_____. | ||||
| A．Capes Taxi, 17 Palace Road, Roston B．Recruitment Office, Southern Airlines, Heathrow Airport West, HR 37KK C．the Director of Studies, Instant Languages Ltd. , 279 Canal Street. Roston. D．a private language school. | ||||
| 2．What stops Jack, an experienced taxi driver, working for Capes Taxis? | ||||
| A．Fond of beer and wine． B．Being Punished (处罚) for driving too fast and wrong parking． C．Being Unable to speak a foreign language． D．Not having college education． | ||||
| 3．Beta, aged 22．likes swimming and driving, has just finished college. Which job might he get? | ||||
| A．Driving for Capes Taxi B．Working for Southern Airlines C．Teaching at Instant Languages Ltd． D．Working for Northern Airlines． | ||||
| 4．What prevents (阻止)Mary, aged 25, from becoming an air hostess? | ||||
| A．She once broke a traffic law (法律) and was fined(被处罚)． B．She can't speak Japanese very well． C．She has never worked as an air hostess before． D．She feels like working long hours flying abroad． | ||||
| 5．What information we can't find in the three advertisements? | ||||
| A．Whether he or she is married B．Whether they are men or women C．Their education D．The ages |