num.四十九

The earth is forty nine times as large as the moon. 地球的大小是月球的49倍。

The earth is forty nine times the size of the moon. 地球的大小是月球的49倍。

United State Dollars Fifteen Millon, Five Hundred Three Thousand, Two hundred Forty Nine and Cents Ninety Nine only. 以前看过很多的钱数，在表达时都乱乱的写在一起，看着十分不爽，请看下面这个还算清爽的：

Methods Forty nine cases of pregnant women over 37 weeks were divided into normal and abnormal groups according to fetal BpD,AC,HC,FL which were measured with Doppler Ultrasound. 方法 观察对象为 4 9例孕37周以上的孕妇 ,用超声多普勒检测仪检测胎儿双顶径、腹围、头围、股骨长径估测体重 ,结合脐动脉血流动力学指数 :S/ D比值、PI、RI,按围产儿结局分为正常组和不良组进行对比性研究。

METHODS: Forty nine healthy Japanese white rabbits were randomly divided into 7 groups of 7 rabbits each:control group,model group,danshenyin group, xuefuzhuyu tang group, shixiaosan group, huoluoxiaoling dan group and taohongsiwu tang group. 方法:健康日本大耳白兔49只,按随机分层分组法分为空白组、模型组、丹参饮组、血府逐瘀汤组,失笑散组,活络效灵丹组,桃红四物汤组,每组7只。