：投票决策的方法有：Voting methods may include: （）A:raising your handB:speaking up (e.g. all those in favour please say ‘aye’)C:Secret ballot (where you write your vote on a piece of paper)答案: raising your hand;speaking up (e.g. all those in favour please say ‘aye’);Secret ballot (where you write your vote on a piece of paper)5、