2/ Tại sao vào những ngày Lễ, Tết thì giá hoa tươi có lúc tăng cao, có lúc tăng nhẹ?
Hãy giải thích & minh họa bằng đồ thị cung - cầu

answer; i believe its (d) intrinsic;

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it

answer; ///blank(1) longer; blank(2); lessi believe this is correct, plz check first; good luck';