... is(are) correct？ (1) If a demand curve is upward -sloping,then it is a normal good 如果需求曲線成正斜率，則該財貨...
...img172.imageshack.us/img172/9568/aaccbr8.png (-∞, 0), (2, ∞)→concave upward (f''(x) > 0) (0, 2)→concave downward(f''(x) < 0...
... abroad and developing my view,and increase the knowledge of internation. Upward is my self-introduction,thanks ofr listening! 希望有幫...
...when x>2 因此, 曲線在 x<2 是 increasing and concave upward ; 在 x>2 也是 increasing 但 concave downward. 沒有相對極值, 也沒有...
... and the financial direction, tests an ordinary shop employee first, upward is going forward, the advance gradually, does not need to be too quick...
...計畫，以備不時之需。 ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ Upward communication下行溝通－指任何由管理者對下屬員工的溝通 常用在告知、指揮、協調...
1. extending is uncountable, so It can't add The. 2. than any other + signular N, than all the other + plural +N
