物理、力学、光学、量子物理、生物、化学、天文学、植物学、生物工程、土木工程、生物化学、基因学、微生物、机械工程、营养学、遗传学、地质学、生态学、解刨学等。 Whenever a firm recruits expert staff members, it invests a big length of time and schooling. For instance, it usually can take yrs before a study chemist or a style engineer develops a workable understanding of an organization’s it... https://bookmarksystem.com/story14299159/getting-my-assignment%E4%BB%A3%E5%AF%AB-to-work