Đơn thức có bậc là: A. 9 B. 12 C. 10 D. 6 Cho tam giác DEF có . So sánh các cạnh của tam giác DEF. A. DF < EF < DE B. EF < DE < DF C. DE < DF< EF D. DE < EF < DF Cho bảng tần số sau: Giá trị (x) 16 18 34 38 40 45 Tần số (n) 7 10 y 6 9 11 N = 56 Tìm y và mốt M0 của dấu hiệu: A. y = 13; M0 = 34 B. y = 12; M0 = 34 C. y = 10; M0 = 45 D. y = 9; M0 = 45 Cho tam giác ABC có AB = 7cm, AC = 8cm, BC = 5cm. So sánh các góc của tam giác ABC. A. B. C. D. Cho P(x) = -5x5 + 4x4 – x2 + x + 1; Q(x) = x5 – 5x4 + 2x3 + 1. Hiệu của P(x) – Q(x) là: A. - 4x5 + 9x4 + 2x3 + x2 – 2 B. 6x5 – 9x4 + 2x3 + x2 – x C. – 6x5+ 9x4 – 2x3 - x2+ x D. 5x5 – 9x4 + 2x3 – x – 2

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Anger has many (21)__________. Often it is an emotion which is secondary (22)__________ some other emotion that you are feeling – like fear, guilt or relief. So the parent who shouts at her kid who gets home late is using anger as a way of (23)_________ fear. Sometimes it is the result of a sense of great (24)__________ -such as when someone is wrongly (25)_________ of a crime, finds that their partner has been (26)__________ to them, or feels as passionate sense of social injustice. (27)__________, anger may have other causes as well. We know that animals can be made more aggressive if the limbic parts of their brains are stimulated; (28)__________, overstimulation of the limbic (emotional) centre of the brain may override the neo-cortex, the (29)__________ part. Changes in hormone levels seem to cause anger too, and inheritance plays a part, as does our (30)__________. The more we are raised in anger, the more anger we are likely to feel later in our lives. 21. A. sources B. bases C. origins D. foundations 22. A. for B. about C. to D. with 23. A. overtaking B. overcoming C. overthrowing D. overturning 24. A. inequality B. unfairness C. disproportion D. inconsistency 25. A. accused B. condemned C. charged D. punished 26. A. unbelievable B. questionable C. suspicious D. unfaithful 27. A. However B. Therefore C. Moreover D. But 28. A. additionally B. consequently C. furthermore D. so 29. A. reasoning B. thinking C. considering D. contemplating 30. A. maturity B. upbringing C. growth D. development