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Quang Lee
Quang Lee

Quang Lee
Học tại trường Chưa có thông tin
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Quang Lee

It ______ able to finish it in an hour

 A. couldn’t be too hard if you areB. can’t have been too hard if you wereC. can’t have been too hard if you had beenD. couldn’t be too hard if you had been  Mọi người ơi câu này đáp án là gì thế ạ, và vì sao lại chọn câu đấy ạ. Mong mọi người giải đáp giúp em ạ. Em chân thành xin cảm ơn!  
Quang Lee
Quang Lee

A good deal of fascinating research has been done about the reading patterns of young people, and it is surprising to discover at what an early age children start expressing preferences for particular kinds of books. A recent report, which examined in detail the reading habits of primary-school children, showed that even seven year old boys and girls have clear views about what they want to read. Girls, in general, read more, and far more girls than boys preferred reading stories. Boys were showing a taste for the more instant appeal of picture stories, or else books about their hobbies.These tastes continue unchanged until the children are teenagers. Apparently girls read more in general, but more fiction in particular. You could say that there are more opportunities for girls to read fiction: magazines encourage the fiction habit in girls in their early teens, and by their late teens they have probably moved on to the adult women’s magazines. Teenage boys tend to buy magazines about their hobbies: motorcycles, heavy transport and so on.Adult reading tastes are also the subject of research. Again the number of women who read for pleasure is considerably higher than the number of men. It seems that the majority of women still want love stories. There has also been some analysis of what men actually read. Apparently only 38 percent of men read anything, but 50 percent of what they read is fiction in the form of action-packed stories of space or gunmen.1. Recent research into children’s reading has shown that they _______A. start to read at a very early age.B. have formed their reading tastes by the time they are seven.C. examine in detail what they read at school.D. can read clearly and distinctly in primary school.2. A close look at the reading habits of boys and girls shows that _______A. schools give more encouragement to girls than to boys.B. magazines appeal more to boys than girls.C. picture stories appeal more to girls than boys.D. girls are more interested in fiction than boys.3. Research into adult reading habits has shown that _______A. the majority of men read nothing at all. B. women do not read about their hobbies.C. 38% of men have difficulty in reading. D. men prefer to read about current affairs.4. According to the passage, _______A. far more boys than girls are interested in love stories.B. there are more opportunities for girls to buy magazines than for men.C. children generally don’t care what they should read.D. Teenage boys show a taste for magazines about their hobbies.5. The word “fascinating” in line 1 means most nearly the same as _______A. having a lot of action B. having a lot of informationC. having great attraction. D. having great pleasure(Bài em lấy của một bạn khác ạ. Key lần lượt là B D D C C. Tuy nhiên em đang thắc mắc tại sao câu 4 lại là C trong khi dữ liệu trên bài nó là " Teenage boys tend to buy magazines about their hobbies: motorcycles, heavy transport and so on." dịch là: "Các chàng trai tuổi teen có xu hướng mua tạp chí về sở thích của họ: xe máy, phương tiện giao thông hạng nặng, v.v" thì em nghĩ phải chọn D chứ ạ?  MỌI NGƯỜI CỨU EM VỚI Ạ EM CẢM ƠN!!!
Quang Lee

Cho a, b, c ϵ N*; thỏa mãn a . b = c.(a + b). Trong đó a và c nguyên tố cùng nhau. Chứng minh a.b.c là số chính phương.

Mọi người giải bằng kiến thức lớp 6(hoặc lớp 7) đều được ạ. Em đang cần lắm ạ. Em cảm ơn mọi người!!!!