( Monitoring heart patients' exercise as well as athletes excersing, is now done by small transmitters broadcasting physiological measurements to nearby recording machines. ) A. Monitoring heart patients' exercise as well as athletes excersing, is now done by small transmitters broadcasting physiological measurements to nearby recording machines. B. Monitoring the exercise of heart patients, as well as athletes excersing, is now done by small transmitters broadcasting physiological measurements to nearby recording machines. C. Small transmitters broadcasting physiological measurement to nearby recording machines are now used to monitor the exercise of both heart patients and athletes. D. Broadcasting physiological measurements to nearby recording machines, small transmitters are now used to monitor heart patients' exercise, as well as athletes exercising. E. Both athletes exercising and heart patients' exercise are now monitored by small transmitters broadcasting physiological measurements to nearby recording machines. 答案是C，错选了E。排除C的原因是感觉主语很长，头重脚轻。第一遍看原文的时候感觉exercise和exercising不平行，但是每个选项读下来发现都是这个形式，（当时没有注意到C的形式）于是就认为这个可能不是考点。E的错误是exercise和exercising吗？麻烦老师讲解。

r/t=2? 条件1：点（r,t）在（0，y）和（x，0）这条直线上，x和y不记得了 条件2：点（r,t）过（0，4）和（3，6）

K P M是三个正整数，问KP+M是奇数吗？ 条件1：KM+P是奇数 条件2：PM+K是偶数

DS：x/a+y/b=1，求该直线与x轴的交点？ 条件1：b=3 条件2：a=b

PS：m,p都是正整数，p是质数。x2-mx+p=0这个方程的根是正数。求m-p的值？ 选项有1，2，4之类。

DS：有12个人给老师买礼物，每个人至少出一块钱，总共出的钱是否不少于30 条件1：有一半的人至少出3块钱 条件2：4个人出的钱至少是出钱最少的人出的钱的5倍

DS：定义F(n)=n/k的余数，问K>10？ 条件1：F(n+32)=6 条件2：F(n+42)=8

PS：一个国家telephone exchange numbers有七个digits，但前三个digits都是一样的数字，例都是932打头。问至少需要多少个数字(minimum required number)可以组成282000个telephone exchange numbers？ 选项是：三个2十几的数字和两个2百几的数字。

DS：a,b,c,d互不相等，(a-c)/(b-d)=a/b吗？ 条件1：a/b=c/d 条件2：(a+c)/(b+d)=a/b

PS：the value of （4^8 - 8^16）/（2^12 – 4^16）

PS：讲一个租赁汽车的公司每一次购买会购买5辆新车，每次卖掉会卖掉3辆旧车，今年新增了14辆车，把每次买和每次卖都算做一次交易，问今年最少做了几次交易？