Of the 300 subjects who participated in an experiment using virtual-reality therapy to reduce their fear of heights, 40 percent experienced sweaty palms, 30percent experienced vomiting, and 75 percent experienced dizziness. If all of the subjects experienced at least one of these effects and 35 perc...... 查看全部
If a committee of 3 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible? (A) 20 (B) 40 (C) 50 (D) 80 (E) 120
老师好，能不能帮忙分析一下这句话呀，我一直觉得limit的对象有歧义： The aid industry should begin to limit its efforts to spending on primary schools in the poorest areas, providing medicines and other basic supplies for health such as mosquito nets, and to a few key agricultural initiatives. 谢...... 查看全部
A certain city with a population of 132,000 is to be divided into 11 voting districts, and no district is to have a population that is more than 10 percent greater than the population of any other district. What is the minimum possible population that the least populated district could have? (A) ...... 查看全部
What is the median number of employees assigned per project for the projects at Company Z? (1)25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2)35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.
这里说的 except 常用于否定结构其实说的是 except 常与否定词连用，比如说：the whole staff, not excepting the headmaster.
有一点要明确的是 excepting 本身有动词词性，D 选项的用法就是用了 except 的动词词性，以 excepting 现在分词作状语的形式出现在句子中，如果用了 excepting 现在分词形式，证明 excepting 的逻辑主语应该是和主句一致的，也就是 Scott Joplin's ragtime opera，如果补全这句话相当于在说 ：Scott Joplin's ragtime opera excepting a concert performance, Scott Joplin's ragtime opera was not produced untill 1972. 这样一看句子逻辑是不是就错了呢
但 except for 就不一样了，它单纯表示 “除了”，用在句子里这句话说的就是 ：“除了 1911 年作曲者自己表演的那次音乐会，Scott Joplin's ragtime opera T 其实是到 1972 年才完成”