decide的名词可数吗

　　Cost was a key element in our decision.

　　价钱是我们决策时考虑的主要因素。

　　We'll make our decision and contact the people involved.

　　我们将作出决定，再与有关人员联系。

　　We will study the report carefully before making a decision.

　　我们将认真研究这份报告，然后再作决定。

　　I'd like a second opinion before I make a decision.

　　我在作决定之前，想听听别人的意见。