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The author used methods such as observation, interviews and questionnaires, compared the students'pre-experiment and post-experiment writing scores and their motivation for writing through questionnaires and drew the following conclusion: Carefully designed task-based activities play an important role in motivating students'writing in English.

本研究还使用了观察、访谈、调查问卷等科研方法，对高一初入学时与高一学期末在任务型写作教学实施前后对学生产生写作动机的状况进行了对比分析，结果进一步证实了灵活的任务型教学对激发学生在写作上的学习动机起到了十分重要的作用。

This research tries to discuss the relationship among shape, color and movement on computer screens by experiments. The research contains three steps: 1. Pre-experiment; 2. Formal experiment; 3. Post-experiment.

本研究采用实验法，以电脑萤幕为受测工具，探讨分割点中心位移、色彩与动态间的关联性，研究分为三步骤进行，一为前测实验，二为正式实验，三为后测实验。

There blood was drawn from the central ear artery to analyze plasma total cholesterol at the pre-experiment and in the 12th week of postexperiment.

在高脂饲养前和饲养后第12周，抽血测血清总胆固醇浓度。

Students from the medium-violence exposure group were chosen for a pre-experiment. They were asked to watch o the two video games that included different levels of violence. Then their blood pressure and heart rate were taken and recorded. And finally they were demanded to comment on the features (like their interest, excitement and whether there was violence in the content and image) of the video games.D.

在中等暴力量接触组抽取16名学生进行预试验，采用平衡法顺序在实验室随机让他们观看攻击内容不同的两个网络游戏视频(反恐精英：坏孩子和跑跑卡丁车：海盗追皮蛋)，检测血压和脉搏的变化情况，然后对所观看的网络游戏视频的特点进行评估(如游戏的趣味性、兴奋性、内容和画面是否暴力等)。D。

Methods: Cluster sampling was used in randomly selected individuals (aged ≥ 50 years) in the southern rural area of Heilongjiang. After the pre-experiment uniform standard was completed, 5058 individuals (91%) were received visual acuity test and eye examination. Two consistency tests were successively performed in the two of sampling units during the survey in order to guarantee the quality.

采用整群随机抽样方法将黑龙江省南部农村人口按一定的标准划分成抽样单位，两组人员通过预实验统一标准后对年龄≥50岁共5058人（受检率91%）进行视力和眼部检查，先后在其中的两个抽样单位进行一致性检验。

All the process of this group was recorded by participant observers, non-participant observers, pre-experiment meetings, post-experiment meetings, photos by camera, and members' feedback.

研究资料的来源包括：工作人员的参与观察纪录、非参与观察记录、团体前会议纪录、团体后会议纪录、团体历程摄影、成员回馈等，研究资料幷以质性研究分析法进行分析。

Methods 100 mice were divided into 6 groups, including standard group, taking protein and tannic acid at the same time, blank group, taking protein and water simultaneously, two experimental groupsand, and two pre-experiment groups and , one of which took tea and protein at the same time, while the other take tea 10minuts later.

本实验将100只小白鼠分设标准组、无茶组、同时加茶组、10min后加茶组及预实验组，实验结束时解剖观察，检测小鼠在餐时及餐后不同时间用普洱茶灌胃后的小肠推进度。

Trial-,Conducted as two 3X3 Latin Square,eachperiod was 10 days,including 5 days for pre-experiment and 5days for sample collection.

每个试验周期为10天，其中予试期5天，粪尿样收集期5天。A、B和C三个AA平衡程度不同的日粮，粗蛋白质水平分别是15.7%、13.7%和11.7%，其可消化赖氨酸水平一致（0.63%）。

Based on pre-experiment foundation of the earlier period, 60 male patients among 45-65 year old were chosed as the clinical case according to the PADAM diagnosis standard, and were divided into 3 groups according to the block stochastic principle, the observation group (acupuncture combined with BUSEHN capsule), group 1, group 2 (takes orally BUSEHN capsule group), each group had 20 cases, and each group of patients was measured by the method of radio-immunity for the serum level of testosterone, luteinizing hormoha, follicle-stimulating hormone before and after the treatment.

在前期预实验的基础上，选择符合诊断标准的PADAM诊断标准的45-65岁男性患者临床病例60例，按照区组随机原则分为3组，观察组、对照组1、对照组2，每组各20例，采用放射免疫法分别测定各组患者治疗前后血清中血清睾酮、黄体生成素、卵泡刺激素的血清浓度的水平；通过三组及三组间治疗前后PADAM症状评分指数的对比研究，揭示针药结合的整体调节作用特色，探讨提高针灸疗效的新途径；总结出针刺对中老年雄激素缺乏综合征患者的内分泌的调节及针刺对睾丸的改善程度，探讨针药结合治疗本病的机制及针灸增效剂的应用前景，为今后进一步研究打下坚实基础。

To increase the medical students' practical technical level, a teaching method was discussed which chooses some classes as experimental groups randomly, the other classes as comparing groups who don't join the pre-experiment.

提高医药卫生类学生实践技能水平，探讨实践技能教学方式方法。通过随机方式选择班级为实验组，其他平行班级为对照组。

This was not understood at the time, and therefore went unaddressed, until ascension became so distorted that we chose to stop ascending and wait for a time when all records would be revealed.

这在当时没有被了解，因此进行着无改编，直到提升变得如此扭曲，我们选择去停止提升并等待所有记录能被揭示的那一天。

The attack＇s nuisance value is increased because mobile phone networks also send notifications of new voicemail by sms,so an attacked phone may stop advising of new voice messages too,it warned.

它警告：这种攻击的危害增长是因为移动电话网络也会通过短信发送新语音邮件的通知。所以受到攻击的手机可也以停止新的语音信息的提示。