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.

Scientists have discovered the bones of what may be the largest meat-eating dinosaur ever to walk the earth. The discovery was made by a team of researchers from Argentina and North America in Patagonia, a desert on the eastern slopes of the Andes in South America. Besides the interesting fact that the dinosaur was huge and horrifying, it is even more astounding that the bones of a number of the dinosaurs were found together. This discovery challenges the prior theory that the biggest meat-eaters lived as loners and instead indicates that they may have lived and hunted in packs. The Tyrannosaurus Rex lived in North America and was believed to hunt and live alone.

The newly discovered meat-eater appears to be related to the Giganotosaurus family, being as closely related to it as a fox would be to a dog. It is actually not of the same family at all as the Tyrannosaurus Rex, being as different from it as a cat is from a dog.

The fossilized remains indicate that the animals lived about 100 million years ago. With needle-shaped noses and razor sharp teeth, they were larger than the Tyrannosaurus Rex, although their legs were slightly shorter, and their jaws were designed to be better able to dissect their prey quickly and precisely.

The word it in the second paragraph refers to _______

A. Relationship                                 

B. dog

C. newly discovered meat-eater                  

D. Giganotosaurus

Mark the letters A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions

(A) Because of the expense of (B) traditional fuels and the concern that they (C) run out, many countries have been (D) investigating alternative sources of power

A. Because of

B. traditional fuels

C. run out

D. investigating

Mark the letters A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions

(A) Crime invention is as (B) crucial in the work place (C) like it is in the home or (D) neighborhood

A. Crime invention

B. crucial

C. like

D. neighborhood

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.

Colors are one of the most exciting experiences in life. I love them, and they are just as important to me as emotions are. Have you ever wondered how the two are so intimately related?

Color directly affects your emotions. Color both reflects the current state of your emotions, and is something that you can use to improve or change your emotions. The color that you choose to wear either reflects your current state of being, or reflects the color or emotion that you need.

The colors that you wear affect you much more than they affect the people around you. Of course, they also affect anyone who comes in contract with you, but you are the one saturated with the color all day! I even choose items around me based on their color. In the morning, I choose my clothes based on the color or emotion that I need for the day. So you can consciously use color to control the emotions that you are exposed to, which can help you to feel better.

Color, sound, and emotions are all vibrations. Emotions are literally energy in motion; they are meant to move and flow. This is the reason that real feelings are the fastest way to get your energy in motion. Also, flowing energy is exactly what creates healthy cells in your body. So, the fastest way to be healthy is to be open to your real feelings. Alternately, the fastest way to create disease is to inhibit your emotions.

Why does the author mention that color and emotions are both vibrations?

A.  Because they both affect how we feel

B. To show how color can affect energy levels in the body

C. To prove the relationship between emotions and color

D. Because vibrations make you healthy

Chất hữu cơ X mạch hở, có thành phần gồm (C, H, O), chỉ chứa một loại nhóm chức không phản ứng với dung dịch AgNO₃ trong NH₃. Đun nóng X với dung dịch NaOH, dư thu được hai chất hữu cơ là Y và Z. Chất Y phản ứng với NaOH (CaO, t^o) thu được hiđrocacbon D. Cho D phản ứng với H₂O thu được chất Z. Đốt cháy hoàn toàn 0,1 mol X cần x lít O₂ (đktc). Sản phẩm sau khi cháy được sục vào dung dịch chứa 0,28 mol Ba(OH)₂, đến phản ứng hoàn toàn, thu được y gam kết tủa. Giá trị tương ứng của x và y là

A. 13,44 và 11,82

B. 11,2 và 15,55

C. 15,68 và 17,91

D. 11,2 và 17,91

Thủy phân hoàn toàn m gam tripeptit Gly-Ala-Ala bằng dung dịch NaOH vừa đủ, thu được dung dịch X. Cô cạn toàn bộ dung dịch X thu được 3,19 gam muối khan. Giá trị của m là

A. 2,83

B. 1,83

C. 2,17

D. 1,64