若将函数y＝tan（ω>0）的图象向右平移个单位长度后，与函数y＝tan的图象重合，则ω的最小值为（ ）
Guizhou is ______ Huanguoshu Waterfall and Moutai in the world.（ ）
famous for
popular with
regarded as
As we all know，the telephone ________ by Alexander Graham Bell in 1876.（ ）
invented
is invented
was invented
Jimmy wants to _______ his trip because he is too busy with his studies.（ ）
put off
wait for
prepare for
In order to protect the environment，many people choose to go to work _____ subway.（ ）
in
on
by
Jason will go to visit his grandparents ________ he finishes his work this weekend.（ ）
unless
though
if
（ω>0）的图象向右平移
个单位长度后，与函数y＝tan
的图象重合，则ω的最小值为（ ）
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