四组

During the following eight sessions in four weeks the subjects were randomly devided into four groups:(1) physical practice group, repeated physical practice twenty times per session,(2) alternating mental-physical practice group, alternating the techinques of physical and mental practice per session,(3) mental practice group, watching the film and listening to the instruction of badminton backhand lowservice,which was followed by five minutes in which the subjects were directed to practice the serve skills mentally for twenty repetitions per session, and (4) control group, no practice.

所有受试者接受羽球反手发短球之教学及练习后，隨机分派到下列四种不同练习组：22身体练习组：每天次练习羽球反手发短球二十次；4综合练习组：身体练习、心智练习间隔交替练习；3。心智练习组：提供羽球反手发短球击球动作录影带及指导语，受试者在五分钟內意像整个动作过程，共计二十次；6控制组：不练习。

Then we prove the one-to-one corresponding relation between 3-coloring of inducing four regular graph and 4-coloring of maximal planar graph and find out the relation between three colors of inducing four regular graph and three dual bi-chromatic subgraph of maximal planar graph.

本文给出了极大平面图的导出四正则图的两种构造方式、等价性及性质，证明了导出四正则图的三着色与原极大平面图四着色的一一对应关系，并且找出了导出四正则图的三种颜色与原极大平面图四着色的三组对偶二色子图之间的关系。

Methods through analyzing the state of 175 children nursed with canal treatment, we conclude the key of nurses' cooperation of the four-handed technique and compare experimental group with control group in treatment time of every tooth and the degree of satisfaction of patient.

对175例根管治疗的儿童护理情况进行分析，总结护士在根管治疗术中四手操作的配合要点，并且比较四手操作组和自身对照独立组在每牙每次治疗时间和患者满意度的差别。

Results:The incidence of hypocalcemia in FDP group was 64.10%, and the one in nonFDP was 15.58%.

结果：：1， 6二磷酸果糖组低钙发生率64.10%，非果糖组低钙发生率15.58%，，用四格表资料的χ2检验，果糖组与非果糖组的χ2=38.01，P.05，两组比较差异有统计学意义。

Forty-two undergraduates were classified into High-High Amplitude Group, High-Low Amplitude Group, and Low-Low Amplitude Group, according to the change patterns of their GSR waves. They were asked to reiterate classical Chinese poems and to take "subtests" of Raven's Progressive Matrices. Their lowest absolute skin resistance and scores on Raven's "subtests" were recorded before and after their performance being observed by their classmates.

根据记录GSR「波形」的结果，将四十二名大一及大二学生分为高-高振幅组、高-低振幅组、和低-低振幅组三组，使他们在「无旁观者」和「有旁观者」情境中，参加唐诗复诵和瑞文氏图型补充测验的活动，藉以探讨三组受试者在心理社会压力情境中的反应之差异。

Forty-two undergraduates were classified into High-High Amptitude Group, High-Low Amptitude Group, and Low-Low Amptitude Group, according to the change patterns of their GSR waves. They were asked to reiterate classical Chinese poems and to take "subtests" of Raven's Progressive Matrices. Their lowest absolute skin resistance and scores on Raven's "subtests" were recorded before and after their performance being observed by their classmates.

根据记录GSR「波形」的结果，将四十二名大一及大二学生分为高-高振幅组、高-低振幅组、和低-低振幅组三组，使他们在「无旁观者」和「有旁观者」情境中，参加唐诗复诵和瑞文氏图型补充测验的活动，藉以探讨三组受试者在心理社会压力情境中的反应之差异。

Methods The global cerebral ischemia/reperfusion injury model was established by the four-vessel occlusion (4VO) method, and then the model animals sere given high-middle-and low-dose muscone. Meanwhile, sham-operation group, model group, and positive control group were also set up. The rats neuroethology behavior, and the contents of superoxide dismutase, malondialdehyde and excitatory amino acid in is-chemic brain tissue were examined.

取Wistar大鼠，采用四血管阻断(4VO)法制备全脑缺血再灌流损伤模型，将成模大鼠随机分为麝香酮高、中、低剂量组(3.6， 1.8， 0.9 mg/kg)，并设假手术组，模型组，阳性对照药尼莫地平组(10.8 mg/kg)，共6组，每组12只对大鼠神经行为学，缺血区脑组织超氧化物歧化酶，丙二醛含量，脑组织兴奋性氨基酸含量进行检测。

High-grade advanced machinery and equipment is assumed business hardware security, the people Langfang Founder Phototypesetting owned printing system, the two groups are the four American Oriental color back 48 reported high-speed offset rotary printing machine, two rotary Taipei production, the two Taiwan Strait Fort off four-color, two quarto four-color printing presses, a four-color printing octavo; Beiren producing two-color, single-, double-sided offset platforms five books, domestic laminating machine, cutting machine palpable , UV, indentation machine, as well as fine books, paperback double booking packages and other major equipment.

高档先进的机器设备是业务承担的硬件保障，廊坊人民印刷厂拥有北大方正照排系统、两组美国东方正四背四八色高速胶印轮转印报机、两台北人产轮转机、两台海德堡对开四色、两台四开四色印刷机、一台八开四色印刷机；北人产双色、单、双面平台书刊胶印机五台、国产复膜机、扪切机、UV、压痕机以及书刊精、平装双套装订机等主要机器设备。

Methods:Established DM rats by intraperitoneal injection of Alloxan and Adrenalin are to be divided randomly in five groups:model control,DM model treated with low dosage, middle dosage and high dosage of Antangpill and the west medicine cross-refer respectively.

采用肾上腺素致高血糖小鼠模型和四氧嘧啶致糖尿病大鼠模型方法研究安糖片降低高血糖的作用，将实验动物随机分为五组：模型组、西药组、低剂量组、中剂量组、和高剂量组。

In order to recognize presumptive sidechain interactions, the purpose of the statistical analysis is to find frequently occurring common parts of amino acid polyads, including diads, triads, tetrads and pentads.

为了识别可能的侧链相互作用，统计分析的目的是发现氨基酸多元组（包括二元组、三元组、四元组和五元组）中频繁出现的组合。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。