下列有关病毒结构和生命活动的特点，叙述错误的是(    )

A．病毒没有细胞结构

B．病毒由蛋白质外壳和遗传物质内核组成

C．病毒的繁殖是在寄主细胞内进行的

D．病毒可以利用自身的营养分裂形成新个体

阅读理解

                        No Smoking Poster Competition (竞赛) Winners

       To celebrate the No Smoking Day on Wednesday12th March, students in the city were asked to

design (设计) a No Smoking poster to get across (传达) the message that smoking is a serious health

danger.

       On Monday 3rd March the Mayor of Shrewsbury, John Cooke,chose the winning posters.

       1st Place-Adam Davies, from Crowmoor Primary School

       2nd Place-Flo Mitford, from Adcote School for Girls

       3rd Place-Lottie Mapp, from Adcote School for Girls

1. When was the No Smoking Day?

A. On Monday.              

B. On Tuesday

C. On Wednesday.            

D. On Thursday.

2. How many students won the prizes in Crowmoor Primary School?

A. One.      

B. Two.      

C. Three.      

D. Four.

3. Flo Mitford and Lottie Mapp must be          .

A. two boys                

B. two girls

C. a boy and a girl            

D. two adults