I saw the doctor_____ in the city of Shanghai last year. Maybe he comes from Shanghai.
A:anywhere
B:everywhere
C:here and there
D:somewhere
下列说法正确的是( )
A组:t<0.5h B组:0.5h≤t<1h C组:1h≤t<1.5h D组:t≥1.5h
请根据上述信息解答下列问题: