问题
选择题
I found that the young man was always spying ________ me all the way, so I glared ________ him.[ ]
A. at; with
B. on; with
C. at; on
D. on; at
答案
答案：D
搜题请搜索小程序“爱下问搜题”
I found that the young man was always spying ________ me all the way, so I glared ________ him.[ ]
A. at; with
B. on; with
C. at; on
D. on; at
答案：D
某建设项目计算期为10年，各年净现金流量(CI—CO)及累计净现金流量∑(CI—CO)如下表所示，则该项目的静态投资回收期Pt为( )年。
| 年份 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| CI—CO | -200 | -250 | -150 | 80 | 130 | 170 | 200 | 200 | 200 | 200 |
| ∑(CI—CO) | -200 | -450 | -600 | -520 | -390 | -220 | -20 | 180 | 380 | 580 |
A．8
B．7
C．10
D．7.1