问题
单项选择题 A1/A2型题
采集河流、湖泊的表面水样可在（）。
A.岸边取样
B.水面下30～50cm处取样
C.距水底的距离10～15cm处取样
D.岸边1～2m处取样
E.距水面下30～50cm，岸边1～2m，距水底的距离10～15cm处取样
答案
参考答案：E
解析：河流、湖泊本体水样与水面、岸边、水底的不完全一样，需要做一定规定。
搜题请搜索小程序“爱下问搜题”
采集河流、湖泊的表面水样可在（）。
A.岸边取样
B.水面下30～50cm处取样
C.距水底的距离10～15cm处取样
D.岸边1～2m处取样
E.距水面下30～50cm，岸边1～2m，距水底的距离10～15cm处取样
参考答案：E
解析：河流、湖泊本体水样与水面、岸边、水底的不完全一样，需要做一定规定。
“Cleverness is a gift while kindness is a choice．Gifts are easy—they're given after all. Choices can be hard．” I got the to start Amazon 16 years ago．I the fact that the Internet usage was growing at 2300 percent per year．I’d never seen or heard of anything that grew so fast，and the idea of building an bookstore with millions of titles was very to me．I had just turned 30，and I’d been married for a year．I told my wife that I wanted to my job and go to do this crazy thing that probably wouldn’t since most start-ups don’t，and I wasn’t sure what to ．She told me I should the idea．I’d always wanted to be an inventor，and she wanted me to follow my ． I was working at a financial firm in New York City with a boss that I admired very much．I went to my boss and with him that I wanted to start a company selling books on the Internet．He took me on a long walk in Central Park，listened to me，and finally said，“That sounds like a really good idea， it would be an even better idea for someone who didn’t already have a good job．”That logic made some to me，and he convinced me to think about it for 48 hours making a final decision．Seen in that light，it really was a difficult ，but finally, I decided I had to give it a shot．I didn’t think I’d regret and failing．And I suspected I would always be troubled by the decision not to try at a11．After much ，I took the less path to follow my dream，and I’m of that Choice．For all of us，in the end，we are our choices．
|