下面关于声门型癌的临床表现描述错误的是()。
A.早期症状不明显
B.可引起呼吸困难
C.不易向颈淋巴结转移
D.预后较好
E.声嘶
参考答案:A
.________ be sent to work in Beijing?
A.Do you suggest who should
B.Do you suggest whom should
C.Who do you suggest
D.Who do you suggest would
石油化工原料及产品有()、()易蒸发等特点。