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  1. ..., sound, motion, and control. Computerized notation The rise of expression evaluators such as calculators and slide rules were...

  2. ...: 濁流; pinyin: Zhuo Liu). The Chinese expression "when the Yellow River flows clear" is...

  3. 1) 早睡 2) 打齊用具:計數機、量角器、圓規 3) 放鬆心情 4) 處理 algebraic expression 時,人地叫你 expand 就唔好 factorize 5) 處理 change of subject 時,將主項 (subject) 的字母調哂一邊,唔好調喲唔喲。 6) 控制時間,隨時棄權 最緊要都係睇清睇楚!!

  4. ...3 = -1.6666666677.... = -1.7 3.Estimate the value of the following expressions .( "~" refers to大約等於) (A)139.6 ~ 140, 59.82 ~ 60...

  5. (a-b)^2 +b(a-b) = a^2-2ab+b^2+ab-b^2 = a^2-ab

  6. ... change imperceptibly in the past few years. 3. Her disdainful expression makes me angry. 4. Bravado won't lead you to...

  7. 2/ [(2√3) - 1] =2/ [(2√3) - 1] x [2√3+1] / [2√3+1] ........其實係x1 ,不過將佢化做咁姐 =2(2√3 +1) / [(2√3 - 1) x (2√3+1)] ..........用 "(a+b)(a-b) = a^2 - b^2" (指分母) =(4√3 +2) / 11

  8. ... Colloquial use of the term Everyday use of the expression "microcomputer" (and in particular the "micro" abbreviation...

  9. ...b+13)] = (3a+b+13)(3a-b-13) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2.simplify the following expressions ......-3a-9.........4 -------------- + ----- ....(a+3)(a+3)..a-3 (-3a-9)/(a+3)(a+3) + 4/(a...

  10. ...pronunciation quite different from ours. Even their English expressions are very strange to me. For example, we say " a dollar"...