Hello!I’m Cindy’s Chinese teacher Sun Tong.I’m 22 years old. I’m Chinese .My Chinese is very good. Oh my English is not good .Cindy is an English girl.She is 12 years old.Her English is very good. Her Chinese name is Sun Xiaotong.

根据短文内容判断下列句子正（T）误（F）

小题1:Sun Tong’s English name is Cindy.             (      )

小题2:Cindy is an English teacher.                   (      )

小题3:Cindy’s English is very good.                 (     )

小题4:Sun Tong is not Chinese.                     (      )

小题5:Sun Tong is Sun Xiaotong’s Chinese teacher.     (      )

用光学准直仪测量V形导轨在水平面内的直线度时。应将目镜顺时针方向旋转90°。