属于一般性资源资产的性质和特征是( )。 A．有用性 B．天然性 C．有限性 D．

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

第二次工业革命时期，影响主要资本主义国家经济发展不平衡的因素有：（）①新技术新发明在生产中的应用程度②垄断组织发展水平与普及程度③资金、市场对工业生产的满足程度④农业发展与工业发展的适应程度

A.①②③

B.②③④

C.①②④

D.①②③④

数字双相码中，（）为禁用码组。

临床可听到胎心音的时间一般在( )

A．14—16周

B．16—18周

C．18—19周

D．20—24周

E．24周以上

煤气分配主管构成无端点的闭路环，只有距离气源远点，不存在供气管道未端，这种管网指的是（）煤气管网。

A.树枝型

B.幅射型

C.环型

D.双管型