In Texas House and Senate races recently, the number of races in which two major-party candidates squared off against each other in the general election is compared to uncontested or minor-party candidate elections.

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the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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