α-L岩藻糖苷酶是近年发现的下列哪种疾病的最好标志物()。
A.前列腺癌
B.乳腺癌
C.肝癌
D.肺癌
E.卵巢癌
参考答案:C
鉴别髓外肿瘤和髓内肿瘤最可靠的体征为()
A.有无腱发射亢进
B.有无分离性感觉障碍
C.有无夏科关节
D.有无截瘫
E.有无大小便失禁
()is the tools to be used to make deal between the seller and buyer by Extranet in a paperless circumstance.
A.POS
B.Electronic commerce
C.EDI
D.Electronic order system