铁路旅客运输合同从（）后成立，至按票面规定运输结束旅客出站时止为合同履行完毕。A.检

My cat’s name is Lucy. She is a very pretty cat. Her hair is black and yellow. She has four children. She is very happy with her young babies.

The four children are not all like Lucy very much. The biggest (最大的) child is quite black. It is black with white feet (脚) and white ears. Two children are like their mother. They are black. My daughter says, “Aren’t they pretty ? Can’ t I have the black and white one? Isn’t he a tomcat (雄猫)?”

I say, “I don’t know, but I know the yellow and black ones are female (雌性的) .” “Are they? How do you know?” “For (因为) they are yellow and black. Tomcats never (从不) have that colour. I’ ll tell you something about that. Listen---”

小题1:Lucy is a _____ .

A．cat

B．student

C．boy

D．girl小题2:The writer (作者) has _____ cats: _____ baby cats and _____ mother cat.

A．four, five, one

B．five, four, one

C．one, three, a

D．two, a, four小题3:文中划线单词 “black and yellow” 的意思是：

A．又黑又黄

B．不黑不黄

C．黑黄不分

D．黑黄相间小题4:The biggest baby is _____ with _____ feet and _____ ears.

A．black, white, yellow

B．black, yellow, white

C．black, black and yellow, red

D．black, white, white小题5:The story tells us the female cat’ s hair is _____ .

A．yellow and black

B．white and yellow

C．black and white

D．yellow with one white ear

三种短周期元素A、B、C的原子序数依次增大，A^3－与B^2－、C^＋的电子层结构相同。下列说法中不正确的是

A．三种元素可组成CAB₂和CAB₃型化合物

B．原子半径：A>B>C

C．15.4gA单质与16.1gC单质所含电子数相等

D．B的某种单质可用于杀菌消毒

2010年5月24日，为期两天的第二轮中美战略与经济对话在人民大会堂举行，国家 * * 胡 * * 出席开幕式并发表题为《努力推动建设21世纪积极合作全面的中美关系》的致辞。回答下列各题

伴随着物流活动过程发生的各种数据、资料，按照其发生的范围应该属于( )。

A．物流系统内部信息

B．物流系统外部信息

C．物流作业层信息

D．物流管理层信息

拉矫机DR材延伸率最大为（）。

A、1.0％

B、0.5％

C、0.1％

D、2.0％