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

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

  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"...