第29题: [填空题]What is usually avoided in conversation with a new friend
Private or ______ things are usually avoided in the conversation. 参考答案:unpleasant 答案解析:[听力原文]
What is usually avoided in conversation with a new friend
第30题: [单项选择]运动时血清酶升高的主要原因是() A. 酶合成增多 B. 酶含量增加 C. 细胞膜通透性增大 D. 机体的自身调节作用 参考答案:C