Cho hàm số y = f(x) thỏa mãn l i m x → - ∞ f x   =   - 1  và  l i m x → + ∞ f x   =   m  Tìm tất cả các giá trị thực của tham số m để đồ thị hàm số y   =   1 f x + 2  có duy nhất một tiệm cận ngang.

A. m = -1

B. m = 2

C.  m ∈ - 1 ; - 2

D. m ∈ - 1 ; 2

Read the following passage and mark the letter A, B, C, D on our answer sheet to indicate the correct word (s) for each of the blanks

Reading is Fun

More and more people are discovering that sharing and talking about their favorite books with others can be as rewarding as the act of reading itself.  For people who feel that they are too busy to sit down with a book, a book club helps them schedule time to read, others have gained self-confidence by (41)____ in or leading a discussion. And most people enjoy the chance to (42)_____ new friends

          A successful book club should have a group that is small enough so even the quiet people can be heard but also big enough for many different opinions. The best arrangement is a (43)____ of ages, sexes, and backgrounds for more reading variety and livelier discussions

          The book club could (44)_____ in one subject or type of book, like mysteries, science fiction, or biographies. Or the members could read books of all types, as long as the book is highly recommended by someone who thinks it would be (45)____ discussing

          Some book clubs meet in places like bookstores, public libraries, or restaurants, but most have their meetings in members’ homes. The approach simply offers more privacy and time for longer meetings. To make the meeting go smoothly, a leader should be appointed. The leader will usually start the discussion by asking what the author’s main idea was. Book club members should never be afraid to offer their opinions, even if they don’t like a book. They just need to be prepared to explain why

Điền ô số 42

A. do

B. form 

C. gather

D. make