Opportunities are not offered. They must be wrested and worked for. And this calls for perseverance and courage.--Indira Gandhi机会不会从天而降，必须怀揣坚持与勇气去努力争取。 My perseverance was getting me somewhere.我锲而不舍，总算有了一些进展。Sometimes pe...
Objective To improve the primary cell culture methods of colorectal adenomas.目的对大肠腺瘤细胞原代培养的方法作进一步的改进.Conclusions The efficacy of sulindac is significant in regressing colonic adenomas of patients with FAP.结论舒林酸对FAP疗效显著,可...
The principle and process flow of dewaxing using double membranes were described.阐述了食用油双膜法脱蜡工艺的技术原理及工艺流程.ABout 90 % of the waxes in commerce are recovered by dewaxing petroleum.工业用蜡中约有90%是由石油中回收的.Dewaxing with over - tem...
At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.Microspore abortion occurred after the tetrad formation.小孢子败育发生在四分体形成以后...
Leading retailers have also begun to change hands or strike emergency refinancing deals.主要零售企业也开始出现经营权易手的情况,还有一些正在达成紧急融资协议.To make matters worse, Jesus has begun consorting with disreputable people like Mary Magdalene, a...