Cho 2 tập hợp . Xét các khẳng định sau đây ; ; Có bao nhiêu khẳng định đúng trong các khẳng định trên?  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• We wish more effective farming methods______ used.

• After leaving school, many of us only read for ________.

• Vùng Trung tâm đất đen có đặc điểm nổi bật là

• Xét tập hợp gồm tất cả các số tự nhiên có 5 chữ số khác nhau. Chọn ngẫu nhiên một số từ . Tính xác suất để số được chọn có chữ số đứng sau lớn hơn chữ số đứng trước (tính từ trái sang phải) ?  

• Unemployment compensation is money to support an unemployed person while he is looking for________.

• Read the passage and choose the correct answer:
  From as early as the 1920s millions of Americans were moviegoers. In the beginning, movies had simple plots and were quickly over. Often they lasted only fifteen minutes. The first Western, The Great_. Train Robbery, had three small scenes - a train robbery, a pursuit on horseback, and a surprise ending where the crook pointed his gun at the movie audience and fired.
  During the 1900s, Hollywood and New Jersey were competitors for the movie industry. New Jersey was desirable because so many actors and actresses worked on Broadway, which is near New Jersey. However, all filming had to take place outside where the light was strong enough. As a result, Hollywood, nestled in the hills of sunny southern California, became the better choice for year-round filming.
  By the 1920s, Hollywood films became a booming industry. Actors such as Charlie Chaplin were making $10,000 per week instead of a few dollars per day on Broadway. Directors began producing longer movies with more placated plots. In time, Hollywood stood for films and the rich people who starred in them.
  Question. According to paragraph 1, what kind of movies were being produced?
  

•  Hệ thống những vật làm nhiệm vụ truyền dẫn sự tác động của con người lên đối tượng lao động là

• Cho phương trình . Đặt , ta được phương trình nào dưới đây?                                 

• Cho hàm số . Mệnh đề nào dưới đây đúng?

• They wish they ______ lying at the beach now.