Chinese can sing English songs as as native speakers.[ ]
A.good
B.well
C.better
D.best
答案:B
—Will you please help me to repair the computer now?
—Sorry. I’m too busy and I haven’t a minute to ________.
A.spare
B.share
C.spend
D.save
男性,50岁,反复上腹痛10年,空腹明显,进食后可减轻。近2个月原有腹痛加重,但规律消失,有体重减轻。查体发现左锁骨上淋巴结肿大。以下哪些检查化验对诊断有意义()
A.血CEA
B.血AFP
C.电子胃镜
D.腹部CT
E.电子肠镜