题目: 猴B病毒病流行病学的特点是()。A.野生猴B病毒抗体阳性率远高于自繁猴B.不同年龄、性别的猴均可感染B病毒C.不同性别的猴可感染B病毒有差异D.随年龄增长,B病毒抗体阳性率呈上升趋势 答案: 参考答案:A, B, D
题型:选择题 选择正确的答案,将对话补充完整。Jenny: Hi, Danny. Tomorrow is Christmas. 1 Danny: Yes. What are you doing now? Jenny: We are putting up the Christmas trees. 2 Danny: Yes, I'd like to. Jenny: Can you put the stars on the tree? Danny: Yes. 3 Jenny: Then let's put the gifts under the tree. Danny: There! 4 Jenny: It's beautiful!A. Would you like to help us? B. It's done! C. Are you ready for it? D. The star always goes on top! 查看答案
题型:单项选择题 根据营业税法律制度的规定,下列各项收入中,免征营业税的是( ) 。A.某科研单位取得的技术转让收入B.某冰箱厂取得的商标权转让收入C.某房地产公司取得的商品房销售收入D.某歌厅为顾客提供娱乐服务取得的收入 查看答案