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.

Normal human beings ______.

A. learn to talk after learning to write 

B. learn t o write before learning to talk

C. learn to write and to talk at the same time

D. learn to talk before learning to write

=(15+27+8):5

= 50:5=10

Cho hình chóp S.ABCD có SA=a, SB=2a, SC=3a, A S B ^ = B S C ^ = 60 ° , C S A ^ = 90 ° . Gọi α là góc giữa hai đường thẳng SA và BC. Tính cos α.

A.  cos α = 7 7

B.  cos α = - 7 7

C.  cos α = 0

D.  cos α = 2 3  

Tính nhanh:

a) 42.50 - 38.50 - 25.4                           b) 32.38 + 17.94 - 15.38 - 32.17

Jane recounted the details of her vacation so _____ that we were able to picture what she had done.

A. vividly 

B. presently 

C. punctually 

D. obviously 

Mark the letter A, B, C or D to indicate the sentence that is closest in meaning to each of the following questions.

Ironically, the new model is nowhere near as reliable as the old one.

A. Ironically, the old model is far superior to the new one.

B. Ironically, the old model is far reliable as the new one.

C. Ironically, the old model is much more superior to the new one.

D. Ironically, the new model is not as reliable as the old one.

Lên gút gồ ý

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Không tính ra kết quả hãy so sánh A và B, biết :

A = 2007 x 2007

B = 2004 x 2008