Cả nhà ơi cho mình hỏi chút được không ??

Các quốc gai trong hiệp hội asiad ? Việt Nam gia nhập vào ngày / tháng / năm nào ? tìm hỉu vấn đề biển đông ngày nay ? Liên hệ của bản thân trong việc bảo vệ an ninh chủ quyền quốc gia ??

Cứu mình với nha !!!!

giúp minh được không : Vì sao phát minh về khoa học xã hội đặc biệt là phát minh của MÁC và ĂNG - GHEN quan trọng đối với lịch sử loài người

Giúp mình được không ???

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 below.

Because writing has become so important in our culture, we sometimes think of it as more real than speech. A little thought, however, will show why speech is primary and writing secondary to language. Human beings have been writing (as far as we can tell from surviving evidence) for at least 5000 years; but they have been talking for much longer, doubtless ever since there have been human beings.

When writing did develop, it was derived from and represented speech, although imperfectly. Even today there are spoken languages that have no written form. Furthermore, we all learn to talk well before we learn to write; any human child who is not severely handicapped physically or mentally will learn to talk. a normal human being cannot be prevented from doing so. On the other hand, it takes a special effort to learn to write. In the past many intelligent and useful members of society did not acquire the skill, and even today many who speak languages with writing systems never learn to read or write, while some who learn the rudiments of those skills do so only imperfectly.

To affirm the primacy of speech over writing is not, however, to disparage the latter. One advantage writing has over speech is that it is more permanent and makes possible the records that any civilization must have. Thus, if speaking makes us human, writing makes us civilized.

In order to show that learning to write requires effort, the author gives the example of _______.

A. people who learn the rudiments of speech

B. severely handicapped children

C. intelligent people who couldn’t write

D. people who speak many languages

Trong các chất : etilen, benzen, stiren, metyl acrylat, vinyl axetat, đimetyl ete, số chất có khả năng làm mất màu nước brom là

A. 5

B. 4.

C. 3

D. 6