腕部尺神经病适于手术治疗的情况是()

A．只丧失感觉

B．疼痛严重

C．萎缩严重

D．有占位神经病变

E．前臂肌肉萎缩

As we are ______ the market for Table Cloth, we should be glad if you would send us your best quotation.

A．in
B．on
C．entering
D．at