有助于运送卵子的是（）
A.纤毛细胞
B.无纤毛细胞
C.楔状细胞
D.未分化细胞
E.基底细胞
参考答案：A
-May I come in? I'm sorry I am late.
-Come in, please. But could you please tell me ?[ ]
A. what were you doing then
B. why are you late again
C. who you talked with
D. how did you come to school
世界卫生组织将哪种疾病命名为严重急性呼吸综合征（）
A.肺炎支原体肺炎
B.肺炎衣原体肺炎
C.病毒性肺炎
D.传染性非典型肺炎
E.细菌性肺炎
