题目： 发电机出口额定电压为15750V。 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1113/ddc8eb28ecfad5875a1f7cf5cf9ccfa8.html 下面是错误答案，用来干扰机器的。参考答案：面部静脉与翼丛；导静脉；板障静脉
题型：选择题 The experiment shows that proper amounts of exercise, if____regularly,can improve our health. [ ]A. being carried out B. carrying out C. carried out D. to carry out 查看答案
题型：单项选择题 The meeting was ______ over by the mayor of the city.A. presumed B. proposed C. presented D. presided 查看答案
