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 36 to 42.

Productivity Hacks for Great Success

 No matter who we are or where we are from, we only have 24 hours each day to get things done. Some people seem to make the most of their time, using it to achieve their goals and dreams. Others feel that life is passing them by and they aren’t accomplishing anything. If you are in the latter group, it is not too late to turn things around. By implementing a few simple hacks, you can start getting better results very quickly.

 If you want to become more productive, it pays to learn about the Pareto principle (which is also known as the 80-20 rule). It states that for most tasks, 80 percent of the results we get come from 20 percent of the work we do. For example. 80 percent of the company sales usually come from 20 percent of customers. Therefore, the trick is to focus your efforts on the key 20 percent of actions that truly matter to greatly improve your results.

 In some cases, people may be busy from morning to night but still seem to get nothing done. In this situation, the problem might be that clear goals haven’t been set. To fix this, set some time aside to list the things you want to achieve in life. Then, select the top three or four that you want to focus on for the next year. Look at your goals every night before bedtime and ask yourself what are the next actions to accomplish each day. Then, promise yourself that you will finish these tasks no matter how busy you get. If possible try completing the tasks first thing in the morning so you are assured of success.

 Another common mistake regarding productivity is not considering our energy levels. If we try to work around the clock, we will eventually get tired and quit. Everyone needs time to sleep, eat, socialize with friends, and unwind from the stress of the day. To make sure you don’t burn out, be sure to schedule some time for breaks and fun activities into your schedule every day. Finally, no matter how difficult your goals may seem, remember the old saying that “a journey of a thousand miles begins with a single step”

What is implied in the last sentence of the passage? 

A. It is best to take a big first step

B. Start moving toward your dreams little by little

C. Think twice before taking any steps

D. People get their best ideas when traveling

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 following questions  from 39 to 40.

Animation traditionally is done by hand-drawing or painting successive frames of an object, each slightly different than the preceding frame. In computer animation, although the computer may be the one to draw the different frames, in most cases the artist will draw the beginning and ending frames and the computer will produce the drawings between the first and the last drawing. This is generally referred to as computer-assisted animation, because the computer is more of a helper than an originator.

In full computer animation, complex mathematical formulas are used to produce the final sequence of pictures. These formulas operate on extensive databases of numbers that define the objects in the pictures as they exist in mathematical space. The database consists of endpoints, and color and intensity information. Highly trained professionals are needed to produce such effects because animation that obtains high degrees of realism involves computer techniques for three-dimensional transformation, shading, and curvatures.

High-tech computer animation for film involves very expensive computer systems along with special color terminals or frame buffers. The frame buffer is nothing more than a giant image memory for viewing a single frame. It temporarily holds the image for display on the screen.

A camera can be used to film directly from the computer's display screen, but for the highest quality images possible, expensive film recorders are used. The computer computes the positions and colors for the figures in the picture, and sends this information to the recorder, which captures it on film. Sometimes, however, the images are stored on a large magnetic disk before being sent to the recorder. Once this process is completed, it is repeated for the next frame. When the entire sequence has been recorded on the film, the film must be developed before the animation can be viewed. If the entire sequence does not seem right, the motions must be corrected, recomputed, redisplayed, and rerecorded. This approach can be very expensive and time consuming. Often, computer-animation companies first do motion tests with simple computer-generated line drawings before selling their computers to the task of calculating the high-resolution, realistic-looking images.

According to the passage, the frame buffers mentioned in the third paragraph are used to ________.

A. add color to the images

B. expose several frames at the same time

C. store individual images

D. create new frames

Hơp chất hữu cơ X có công thức phân tử C₂H₁₀N₄O₆. Cho 18,6 gam X tác dụng với 250 ml dung dịch NaOH 1M cho đến khi phản ứng xảy ra hoàn toàn thì thu được dung dịch Y. Cô cạn Y thu được hơi có chứa một chất hữu cơ duy nhất làm xanh giấy quỳ ẩm và đồng thời thu được a gam chất rắn. Giá trị a là

A. 21 gam.

B. 19 gam.

C. 15 gam.

D. 17 gam.

Đốt cháy hoàn toàn 7,576 gam hỗn hợp các este thuần chức bằng O₂ dư, sau khi kết thúc phản ứng thấy thu được 0,25 mol H₂O và CO₂. Đem toàn bộ sản phẩm cháy hấp thụ hết vào dung dịch nước vôi trong dư thấy có m gam kết tủa xuất hiện. Mặt khác, khi cho 7,576 gam hỗn hợp este này tham gia phản ứng với NaOH thì thấy có 0,1 mol NaOH phản ứng. Giá trị của m là

A. 3,23 gam.

B. 33,2 gam.

C. 23,3 gam.

D. 32,3 gam.