皮皮学,免费搜题
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【单选题】
龋病的二级预防包括()
A.
窝沟封闭
B.
应用氟化物
C.
早期充填
D.
合理饮食
E.
口腔健康教育
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【简答题】听下面一段对话,回答第1-3小题。 1. How many days does Tom have for his holiday? A. Five days. B. Five weeks. C. Five months. 2. What's Lily going to do on holiday? A. Go camping. B. Visit her cousin. C. Do her home...
【简答题】听短文,回答问题。 1. How many days does Tom have for his holiday? A. Five days. B. Five weeks. C. Five months. 2. What's Lily going to do on holiday? A. Go camping. B. Visit her cousin. C. Do her homework. 3....
【简答题】听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳答案,并将其标号填入题前括号内。每段对话读两遍。 1. What are they going to do this weekend? A.Go camping. B. Go fishing. C. Go boating. 2. Who is using the eraser now? A.Lucy. B. Tom. C...
【多选题】2要产生反应,刺激必须在以下几个方面都要达到一定的条件
A.
刺激时间
B.
刺激强度
C.
刺激的强度-时间变化率
D.
刺激速度
【判断题】凯氏带可选择性透过植物所需要的矿质元素。
A.
正确
B.
错误
【判断题】癌前病变是指某些具有癌变的潜在可能性的良性病变,如不及时治疗,经历较长时间终将发生癌变。
A.
正确
B.
错误
【判断题】癌前病变是指某些具有癌变的潜在可能性的良性病变,如不及时治疗,经历较长时间终将发生癌变。
A.
正确
B.
错误
【简答题】情态动词填空 If you __go,at least wait till the rain stops. I __be late,so don't wait for me. They insisted that everyone __come in time. Write to me as soob as you arrive.I__. Although Tom is often easy-go...
【简答题】听对话,选择正确答案(听两遍) 1. What's the matter with Jack? A. He has a backache. B. He has a toothache. C. He has a headache. D. He has a stomachache. 2. What does Jane usually do on Sundays? A. She watches TV. ...
【简答题】从方框中选择适当的句子,补全对话(共5小题,每小题1分) A: Hey, Lucy! What are you doing for vacation? B: 1 I'm leaving on Friday. How about you? A: I'm going sports camping. B: Oh, cool! A: 2 B: I'm going with my mother. A: 3 ...
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