英语语法分析

Methods: Three groups were treated with intragastric misoprostol, cimetidine, and placebo respectively.

方法：分三组分别接受米索前列醇、甲氰咪胍和不接受预防性药物。

Methods The damage of gastric mucosa was observed by using intragastric perfusion with peptone and HCl.

方法采用胃内灌流法观察蛋白胨和不同浓度盐酸对胃粘膜损害作用的影响。

Objective: To investigate the procedure of the hyperlipemia model by intragastric administration of fat emulsion in mice.

目的：探讨、完善脂肪乳剂制备小鼠高脂血症模型的方法。