肺癌远处转移可出现的表现是（）
A.锁骨上淋巴结肿大
B.Horner综合征
C.肥大性骨关节病
D.上腔静脉压迫综合征
E.咽下困难
参考答案：A
As ________ clear from his manners, he seems to be much of a scholar.
A．being
B．is
C．if
D．though
青光眼的症状表现（）
A.虹视
B.眼压升高
C.头晕眼痛
D.恶心呕吐
E.视野变窄，视力减遇
