A cat retracts its claws.猫缩进它的爪子.The split graph is given endomorphism images are retracts.给出了任意自同态像图都是收缩核的分裂图的结构.The nose unit is twin - wheeled and retracts rearward.前鼻单元是双轮并向后收起....
Results: 39 tumors were cervical, 11 were thoracic, and 10 were conus medullaris and filum ferminale.主要位于胸髓(包括 部分 累及颈髓及腰髓)11例.位于圆锥马尾10例.Purpose: The arteriosclerosis and circuity of thoracic aorta will press the oesophag...
倘若他真是个出过风头的棒球手, 那棒球也就不成其为棒球了.But if he had starred at baseball , it was in some league I did not know.也就是说,已经不服用兴奋剂的棒球手,打出的本垒打仍可能和兴奋剂有关.Which means a clean ballplayer can still hit a dirty home run.他既不能投球,又不能接球,不能算是个出色的棒...