胃液是胃壁内的小腺体分泌的,含有___________酶,呈______性;如果分泌过_____,会出现返酸,胃痛等现象。
胃蛋白 强酸 多
与人宫颈癌的发生有关()
A.EB病毒
B.人 * * 瘤病毒
C.人嗜FT淋巴细胞病毒
D.甲胎蛋白
E.癌胚抗原
Barbara is easy to recognize as she's the only one of the women who _____ evening dress. [ ]
A. wear
B. wears
C. has worn
D. have worn