Chinese state media say U. S. drug maker Pfizer has won a court case in China against two companies which were copying its immensely popular male impotency treatment, Viagra.
中国国家媒体报导，美国辉瑞制药公司在中国起诉两家公司复制辉瑞受欢迎的治疗男性阳萎的“威而钢”产品的案子中胜诉。
The men and women were randomly assigned to two groups, either to be treated with Viagra or a placebo.
然后，在实验过程中，男性志愿者和女性志愿者被随意分在2个组中，研究人员通过伟哥或安慰剂对他们进行治疗。
The men and women were randomly assigned to two groups, either to be treated with Viagra or a placebo.
然后，在实验过程中，男性志愿者和女性志愿者被随意分在2个组中，研究人员通过伟哥或安慰剂对他们进行治疗。
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