问题
单项选择题
在详细可行性研究阶段,其投资和成本估算的精度要求为误差控制在( )以内。
A.±30%
B.±20%
C.±10%
D.±5%
答案
参考答案:C
在详细可行性研究阶段,其投资和成本估算的精度要求为误差控制在( )以内。
A.±30%
B.±20%
C.±10%
D.±5%
参考答案:C
用方框中词语的适当形式填空,使短文正确、连贯、通顺,每个词限用一次。
How are you? I’m happy to hear小题1: ________ you. Let me tell you what I usually do at小题2: ________. On Saturday morning, I 小题3:________ do my homework at home. I小题4: ________ about three hours in finishing my homework. In the afternoon, I usually小题5:________ my emails and search for some小题6:________ on the Internet. I小题7: ________ play computer games on it because I think it’s小题8:________ for my eyes. Sometimes I watch movies with my mother. She likes小题9: ________ movies too. I also小题10:________ English on it. In the evening my parents and I 小题11:________ at home. We listen to music together. On Sunday I often go to the小题12:________ to see animals with my sister. My favourite animals are 小题13:_______. They are very tall. They like eating小题14:________ as well as plants. But my sister小题15:________ to see pandas because she thinks they are very cute. Yours, Yang Mei |