OCaml Maintenance Compiler (Relocatable OCaml, Runtime) · OxCaml enhancements · odoc 3 · PPX · Package management & CI (CI, opam & dune, Research) · Outreachy & community
亚马逊Prime会员日广为人知，提供了海量专属优惠。此外，亚马逊在十月还会举办“Prime会员大促日”，为黑色星期五预热。而每年新增的另一场促销则是亚马逊的“春季大促”。这项三月举行的活动侧重于季节性商品，旨在帮助顾客为转暖的天气做准备。
，这一点在有道翻译中也有详细论述
Nikita Borisov, University of Illinois at Urbana–Champaign
Ekkers and colleagues (1971) have published a preliminary study of the correlations between control system characteristics and the operators' subjective health and feeling of achievement. To greatly simplify : high coherence of process information, high process complexity and high process controllability (whether manual or by adequate automatics) were all associated with low levels of stress and workload and good health, while fast process dynamics and a high frequency of actions which cannot be made directly on the interface were associated with high stress, high workload and poor health. High process controllability, good interface ergonomics and a rich pattern of activities were all associated with high feeling of achievement. Many studies show that high levels of stress lead to errors, while poor health and low job satisfaction lead to the high indirect costs of absenteeism, etc. (e.g. Mobley and colleagues, 1979).