在环境保护政策的制定中，如何平衡经济发展与生态保护之间的矛盾？

在队列的顺序存储结构中，front指针的作用是什么？

根据互惠法则，以下哪种礼物更能够启动对方的互惠行为？

A research team is conducting a study on the effects of different types of feedback on second language learners’ writing performance. One group receives feedback that focuses solely on grammatical errors (error-focused feedback), while another group receives feedback that highlights both grammatical errors and strengths in their writing (balanced feedback). Assuming all other variables are controlled, which group is MOST likely to show greater improvement in their writing quality, taking into account motivational and learning principles?

在决策过程中，良好的决策策略可以：