第17题: [单项选择]What is the possible relationship between the two speakers [A] Husband and wife. [B] Teacher and Student. [C] Classmates. 参考答案:C 答案解析:[听力原文] M: Our professor is iii today, so we have no classes. F: Isn’t that nice Do you know h
第18题: [单项选择]同样剂量的X线照射下,敏感较低组织是()。 A. 造血组织 B. 淋巴组织 C. 未成熟的性细胞 D. 肠道上皮细胞 E. 骨骼和肌肉 参考答案:E