目的在于研究镇痛方法与术后并发症的相关性。The objective is to study the relativity between analgesia methods and operation complication.田间植株蚜数与同块田内病毒的扩散程度间无相关性.Aphid count on plants in fields do not correlate with virus spread in the same fi...
Many adults have some problems with literacy and numeracy...很多成年人在读写和计算方面都有困难。There was also a strong link between children'slow maths scores and parents' numeracy problems.孩子数学成绩差也与父母算术不好密切相关。Six months later ...