Cho góc nhọn xOy. Trên tia Ox lấy hai điểm A và B sao cho OA < OB (A khác O). Trên tia Oy lấy hai điểm C và D sao cho OC = OA, OD = OB. Chọn câu khẳng định sai:
A.BC = AD.
B. $ \widehat{OAD}=\widehat{OBC} $ .
C. $ \Delta OAD=\Delta OCB $ .
D.AB = CD.

Cho tam giác ABC (AB < AC). Tia phân giác của góc BAC cắt BC ở D. Trên tia AC lấy điểm E sao cho AE = AB. Khi đó khẳng định nào dưới đây là đúng?
A.$ \Delta ABD=\Delta ACD $ .
B.$ \Delta ABD=\Delta AED $ .
C.$ \widehat{ADC}={{90}^{o}} $ .
D.$ \widehat{ABD}=\widehat{ADE} $ .

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSSET in meaning to the underlined word(s) in each of the following questions.
You can use a microwave or cook this kind of food in a conventional oven.
A.extraordinary
B.traditional
C.modern
D.unique

Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions
Gradually more children were sent to the class as their parents realized that the young teacher was trying her best to help their poor kids
A.Weakly
B.Slowly
C.Progressively
D.Firstly

Make the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions
Carbohydrates are plentiful in nature where they serve as an immediate source of energy.
A.Reliable
B.obscure
C.abundant
D.unstable

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
They fought fearlessly against the invading armies
A.bravely
B.carefully
C.cowardly
D.powerfully

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions
Did anyone acknowledge responsibility for the outbreak of the fire?
A.find out
B.admit
C.inquire
D.report

Mark the letter A, B, C or D to indicate the word or phrase that is SIMILAR in meaning to the underlined part in each of the following questions.
Oil spills are having a devastating effect on coral reefs in the ocean.
A.significant
B.powerful
C.disastrous
D.detectable

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in the following question.
John has left a job from his job because he has just got a better-paying one.
A.renounced
B.resigned
C.withdrawn
D.retired

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
Though many scientific breakthroughs have resulted from mishaps it has taken brilliant thinkers to recognize their potential.
A.misfortunes
B.misunderstandings
C.accidents
D.incidentals