Ở động vật, bộ phận hoặc cơ quan thực hiện trao đổi khí O₂ và CO₂ với môi trường gọi là

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

Working on Your Workout

(I) Although appreciating a balanced diet and regular exercise, most people do not know how to exercise properly. Consequently, they usually rush through their workouts, or they make the same common workout mistakes. (II) Exercising the right way is important for people who are worried about their health and their appearance. (III) However, if someone is not working out properly, they will not see the results they want. Therefore, training experts have devised tips to teach people how to exercise correctly in order to achieve the greatest health benefits. (VI)

One of the most common workout mistakes is doing the same routine over and over again. This does not challenge your muscles, and it can actually prevent muscles from growing and repairing themselves. Instead of always sticking to the same old workout, it is important to change your routine every six to eight weeks. It is also important to add a variety of workouts to your routine, such as swimming, yoga, or biking, to make sure your whole body stays fit. This will help make your workouts more interesting, and benefit your health and muscle development as well.

Another mistake people tend to make is to work out too hard, too often. Your body needs to rest between workouts; otherwise, no progress will be made. It is best to keep the number of hard workout routines to no more than two per week. Then, for those who don’t want to get off schedule by skipping a day, shorter workouts of about twenty minutes can be used on other days. For more variety in workouts, you could also plan an easier routine for forty to sixty minutes between days of shorter, more intense workouts. Experts recommend, however, taking at least one day off completely each week, especially after several hard workout days in a row.

In reality, no one is perfect. However, if you want to make a difference in your overall health, there are some things you can do. Stretch before and after every workout. Do not rush your routine, and do not work out too little or too much. Remember not to make these common workout mistakes, and always have fun while exercising!

Which of the following best summarizes the main point of the passage?

Bộ nhớ ngoài bao gồm những thiết bị?

Dãy bit nào sau đây là biểu diễn nhị phân của số “ 3 ” trong hệ thập phân?

Trong chu kì tim của người trưởng thành, pha dãn chung kéo dài bao lâu?

Cho một mạch logic như sau:

Với  p = 01110101 và q = 10101101, phương án nào sau đây nêu đúng giá trị của R?

Mặt bằng của ngôi nhà:

Một con lắc lò xo dao động điều hòa với biên độ 6 cm. Mốc thế năng ở vị trí cân bằng. Khi vật có động năng bằng ¾ lần cơ năng thì vật cách vị trí cân bằng một đoạn:

Với công tác quản lí hồ sơ những việc nào không thuộc nhóm thao tác cập nhật hồ sơ?

Con người ứng dụng loài vi sinh vật nào sau đây để sản xuất chất kháng sinh giúp tiêu diệt các mầm bệnh?

Biết nhiệt dung riêng của nước là \(4200\;{\rm{J}}/({\rm{kg}} \cdot K)\), nhiệt hóa hơi riêng của nước ở 100^oC là \(2,{26.10^6}\;{\rm{J}}/{\rm{kg}}\). Nhiệt lượng cần thiết để làm cho 500 g nước ở 20^oC chuyển hoàn toàn thành hơi nước ở 100^oC là

Cho cấp số cộng có $u_1=-3$, $d=4$. Khẳng định nào sau đây đúng?

Cho tập hợp $B=\left\{x \in \mathbb{R} \, | \, (x^2 - 4).(x^2 + 25) = 0\right\}$. Tập hợp $B$ viết bằng cách liệt kê các phần tử là

Số hóa dữ liệu không chỉ giúp tiết kiệm không gian lưu trữ mà còn tăng cường khả năng truy cập và chia sẻ thông tin trong thời gian thực. Nhờ vào công nghệ số, các dữ liệu có thể được bảo mật tốt hơn và phục hồi dễ dàng khi cần thiết. Số hóa cũng đóng vai trò quan trọng trong việc cải thiện hiệu suất của các hệ thống quản lý thông tin và tối ưu hóa quy trình làm việc. Nó góp phần thúc đẩy đổi mới sáng tạo và phát triển kinh tế trong kỷ nguyên số.

Dưới đây là một số ý kiến về thông tin trên:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 28 to 34. Foot-racing is a popular activity in the United States. It is seen not only as a competitive sport but also as a way to exercise, to enjoy the camaraderie of like-minded people, and to donate money to a good cause. Though serious runners may spend months training to compete, other runners and walkers might not train at all. Those not competing to win might run in an effort to beat their own time or simply to enjoy the fun and exercise. People of all ages, from those of less than one year (who may be pushed in strollers) to those in their eighties, enter into this sport. The races are held on city streets, on college campuses, through parks, and in suburban areas, and they are commonly 5 to 10 kilometers in length. The largest footrace in the world is the 12-kilometer Bay to Breakers race that is held in San Francisco every spring. This race begins on the east side of the city near San Francisco Bay and ends on the west side at the Pacific Ocean. There may be 80,000 or more people running in this race through the streets and hills of San Francisco. In the front are the serious runners who compete to win and who might finish in as little as 34 minutes. Behind them are the thousands who take several hours to finish. In the back of the race are those who dress in costumes and come just for fun. One year there was a group of men who dressed like Elvis Presley, and another group consisted of firefighters who were tied together in a long line and who were carrying a fire-hose. There was even a bridal party, in which the bride was dressed in a long white gown and the groom wore a tuxedo. The bride and groom threw flowers to bystanders, and they were actually married at some point along the route.

Which of the following is NOT implied by the author?