Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

 One of our group’s main goals is to discourage the use of chemical fertilizers

A. prevent

B. encourage

C. avoiding

D. expect

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

Working mothers

  Because an increasing number of people are opting to work outside the traditional office, notebook PCs are becoming more and more popular. However, you should know that notebook PCs aren't for everyone. As you (27) ___________ up the pros and cons of your desktop PC with a new system, you should bear (28) ____________ mind that you may get better profit for your money by investing in a faster, more powerful desktop PC.

          Portability comes at a price. Leave your laptop unattended for any length of time in any sort of public place and you will quickly discover that it has been stolen. You could even lose it without any intentional neglect on your area; laptops (and all the business and personal information they contain) are easy (29) _____________ for skilled thieves. So, yes, there are definitely serious security issues. Also, if you are prone to tossing your laptop around as you do your purse, workout bag or umbrella, you’ll probably break it before you get your money's worth. Guarantees are getting better and longer, but they still won’t cover a simple slip, let alone (30) _____________ carelessness. So, before you (31) _________        out to get yourself the latest technological appliance, think long and hard as to whether a notebook PC is really suitable for you.

Điền vào ô 28.

A. aims

B. objects

C. targets

D. goals

Find the word which has a different sound in the part underlined.

A. stupid

B. studio

C. study

D. student

Có 3 bình không nhãn, mỗi bình đựng 1 trong các dung dịch: NaCl, NaBr, NaI. Dùng cặp thuốc thử nào sau đây để xác định dung dịch chứa trong mỗi bình?

A. Nước Cl₂ và dung dịch I₂

B. Nước Br₂ và dung dịch I₂

C. Nước Cl₂và hồ tinh bột.      

D. Nước Br₂ và hồ tinh bột

Các dàn loa thường có các loa thùng và ta thường nghe thấy âm thanh phát ra từ cái loa đó. Bộ phận nào của loa phát ra âm thanh?

A. Màng loa

B. Thùng loa

C. Dây loa

D. Các bộ phận trên

Trong không gian với hệ tọa độ Oxyz, cho ba điểm A( 1;0;0), B(0;-2;0), C(0;0;-5). Vectơ nào dưới đây là một vectơ pháp tuyến của mặt phẳng (ABC)?

A.  n 1 ⇀ = 1 ;   1 2 ;   1 5

B.  n 2 ⇀ = 1 ;   - 1 2 ;   - 1 5

C.  n 3 ⇀ = 1 ; -   1 2 ;   1 5

D.  n 4 ⇀ = 1 ;   1 2 ;   - 1 5

Các số La Mã: VI, XI, VIII, XIX được sắp xếp theo thứ tự tăng dần là

A. VI, XI, VIII, XIX

B. XIX, XI, VI, VIII

C. VI, VIII, XI, XIX

D. VIII, XI, VI, XIX