1.

例 ：5 times a/per minute简写：PM例：1〉PPM, pages per minute 每分钟多少页 2〉要确定每分钟多少加仑流量，则要采用从第5页开始的阀门流量曲线. Determine GPM flow by use of valve Cv curve starting page 5.呵呵估计你是做物理题之类的吧，“次数”只需要写/min就可以了，比如说5次每分，就是5/min ，“次数”不需要写简写，也就是说没有一个真正的单位叫做“次”，只要写5/min 就可以了 明白了么。

2.英语1至100都怎么写（数字）

one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty_one twenty_two twenty_three twenty_four twenty_five twenty_six twenty_seven twenty_eight twenty-nine thirty thirty_one thirty_two thirty_three thirty-four thirty_five thiety_six thirty_seven thirty_eight thirty_nine fourty fourty_one fourty_two fourty_three fourty_four fourty_five fourty_six fourty_seven fourty_eight fourty_nine fifty fifty_one fifty_two ffifty_three fifty_four fifty_six fifty_seven fifty_eight fifty_nine sixty sixty_one sixty_two sixty_three sixty_four sixty_five sixty_six sixty_seven sixty_eight sixty_nine seventy seventy_one seventy_two seventy_three seventy_four seventy_five seventy_six seventy_seven seventy_eight seventy_nine eighty eighty_one eighty_two eighty_three eighty_four eighty_five eighty_six eighty_seven eighty_eight eighty_nine ninty ninty_one ninty_two ninty_three ninty_four ninty_five ninty_six ninty_seven ninty_eight ninty_nine onehundred。