cần phải tôn trọng đám tang ko nên ls j xúc phạm đến tang lễ đó là 1 biểu hiện của nếp sống văn hóa 

Khoanh vào chữ đặt trước đáp số đúng

Số lớn nhất có ba chữ số hơn số lớn nhất có hai chữ số là:

A. 90

B. 900

C. 800

Tính: 5 +  2 9

A.  7 9

B.  43 9

C.  47 9

D.  52 9

Rút gọn và tính giá trị biểu thức A = x − 6 x 2 + 1 . 3 x 2 − 3 x + 3 x 2 − 36 + x − 6 x 2 + 1 . 3 x x 2 − 36  khi x = 994.

A.  A   =   3 x   -   6 ;   A   =   3 988

B.  A   =   3 x   +   6 ;   A   =   3 1000

C.  A   =   1 x   +   6 ;   A   =   1 1000

D.  A   =   1 x   -   6 ;   A   =   1 988

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks.

Marriage nowadays is a choice people make on their own, but this has not always been the case in society. Thousands of years ago, the average lifespan was shorter than it is today. A man usually lived until he was about 40 years old, while women died even sooner because of childbirth. There were many wars and illnesses, and people had to protect themselves by having more children while they were still young. The parents lived through their children.

Marriage was not so much a romantic love story but a business transaction, or deal. Most marriages were arranged between parents while their children were still very young. It was the custom that the fathers made the decision on whom their children were going to marry. The mothers had little say in it since they rarely made any decisions outside the household. The fathers would meet to arrange the wedding date and the money given for the bride on her wedding date. The more money and land a girl had, the more chances she had to marry well. Therefore, it was important that her father choose the bridegroom very well. Usually, it was someone who came from a good family or who was rich too. It was very unlikely that people married outside their social class. A few well-off and rich merchants got to marry poorer noblewomen and became King’s business advisors. In a way, poor peasants had an easier choice as it was less important whom they married.

The practice of arranged marriage is still common in some countries in the Middle East, such as India or Pakistan. Here, social classes are still strongly divided and very well-kept. Often, however, arranged marriages are a sign that people do not want to let go of the past, which gives them comfort and security in an ever-changing world.

According to paragraph 2, richer girls were more likely to ________ .

A. become noblewomen

B. marry well

C. succeed in business 

D. marry peasants

Ở cấp độ phân tử, thông tin di truyền được truyền từ tế bào mẹ sang tế bào con nhờ cơ chế:

A. Giảm phân và thụ tinh.

B. Nhân đôi ADN.

C. Phiên mã.

D. Dịch mã.

Kết quả thí nghiệm của các dung dịch X, Y, Z, T với thuốc thử được ghi ở bảng sau:

Các dung dịch X, Y, Z, T lần lượt là

A. axit glutamic, tinh bột, glucozơ, anilin. 

B. axit glutamic, glucozơ, tinh bột, anilin.

C. axit glutamic, tinh bột, anilin, glucozơ. 

D. anilin, tinh bột, glucozơ, axit glutamic.