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问题 选择题

用0.618法确定试点，则经过4次试验后，存优范围缩小为原来的（   ）

A．0.618

B．0.6183

C．0.6184

D．0.6185

答案

答案：B

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提示作文 (10分)
请结合以下材料，以“Great changes in my hometown”为题，写一篇80个词左右的短文。
 
Road
Food
Clothes
Education
Activities
In the past
narrow
little
few
No chance to go to school
Very few
Nowadays
wide
Have a healthy diet
Many different kinds of clothes
good
More kinds like drawing dancing……
­­­­­­­­­­­­­­­­­­­­­­­­­­
                                                                
                                                               
                                                             
                                                           
                                                          
                                                          
                                                          
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单项选择题

HDPE膜不能在（）施工。

A．春季

B．夏季

C．秋季

D．冬季
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