避孕常用的方法有____________和____________。
参考答案：工具避孕；药物避孕
—What's the matter with Nancy?
—__________. [ ]
A. She is a teacher
B. She has a book
C. She has a cold
D. She likes music
外国人在中国居民家住宿，在城镇的须于抵达后（）内，由留宿人或本人持住宿人护照、签证和留宿人户口簿到当地公安机关申报。
A.12小时
B.24小时
C.36小时
D.72小时
