【简答题】适应性免疫包括_____和______。
【单选题】Jonny studies in an university, and he finds a _______ job _______ a waiter in a restaurant. [ ]
【简答题】请你谈谈大学生如何践行社会主义核心价值观?
【单选题】加法混合中,将三原色光等量相加,就可以得到包含一切色光的什么色?
【单选题】The waiter hardly has a day off, ? [ ]
【单选题】He ate everything the waiter put out in front of him because ______ .
A.
the food was very nice
【简答题】轴向拉(压)时,用虎克定律求变形时,应用条件是________________________和 __________________________。