女性，28岁，近2个月中度发热，全身肌肉酸痛，四肢关节肿痛，口腔溃疡。尿常规：红细胞（+），蛋白（++）。免疫学检查最可能出现异常的抗体是（）

A.抗核抗体

B.类风湿因子

C.抗Sc1-70抗体

D.抗Jo-1抗体

E.抗中性粒细胞胞浆抗体

If you can't dig into the field you have chosen for your pursuit, it is hardly possible for you to achieve anything significant in the field.

A．acquire

B．require

C．accompany

D．accomplish