【单选题】DB的三级模式结构中最接近用户的是( )
【多选题】Directions: Read the following passage, and select a suitable word for each blank from the word bank. Write down the corresponding letter for each item in the blank. Each word can be used only once. L...
J.
unauthorized K. widely L. undoubted M. perpetrate N. globally O. hack
【单选题】—______ did you go on vacation? —I went to Hong Kong on vacation.
【简答题】用所给动词的适当形式填空。 Last summer, I went to a beautiful beach on vacation with my parents. We 1______ (stay) there for a week. The weather 2______ (be) always sunny and hot. In the morning,my father and I 3_...
【单选题】did you go on vacation? —I went to Paris. It was wonderful.