【简答题】听下面一段第材料,回答1-2题。 1.What's probable relationship between the two speakers? A. Neighbours. B. Husband and wife. C. Boss and secretary. 2.What does the man asked the woman to do? A. To ring up Mary. B. T...
【简答题】(8分)X、Y、Z三种元素位于元素周期表的不同短周期内,X与Z属于同主族元素,Z元素的焰色反应为黄色。X单质与Y单质相互化合可以得到X 2 Y和X 2 Y 2 两种液体化合物,Z单质与Y单质相互化合可以得到Z 2 Y与 Z 2 Y 2 两种固体化合物,其中Z、Z 2 Y、Z 2 Y 2 都能与X 2 Y反应生成一种能使无色酚酞变红的ZYX溶液。 (1)试推测X、Y所代表的元素分别为X 、Y (填元...
【简答题】听对话回答问题。 1.What is Mary's dream work? [ ] A. B. C. 2.Where are the two speakers talking now? [ ] A. B. C. 3.Which fruit could Denis get for the party? [ ] A. B. C. 4.What are they going to...
【判断题】芭蕾基训中擦地训练分为:前擦地、旁擦地、后擦地三种。
【单选题】病人女性,岁,因患呼吸系统疾病,需同时服用几种药物,最后服用的药物是:
【单选题】病人女性,岁,因患呼吸系统疾病,需同时服用几种药物,最后服用的药物是:
【简答题】听下面一段材料,回答第1-3。 1.What’s the possible relationship between the two speakers? A. Father and mother. B. Father and son. C. Mother and son. 2.What do we know from the talk? A. They were waiting to see th...