单项选择题
患者,女性,56岁。双侧腮腺肿大,口、眼干燥5年,类风湿关节炎3年,口内导管口无唾液分泌。该患者行唇腺活检支持舍格伦综合征的表现,其镜下主要表现为
单项选择题 Astronomers believe that matter in different parts of the universe()
单项选择题 She stood there trembling with fear.
单项选择题 She's one of the smartest students in the whole school.()