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问题 选择题

芳香族化合物是指 [ ]

A、分子组成符合CnH2n-6(n≥6)通式的一类物质

B、分子里含有苯环的烃

C、苯和苯的同系物的总称

D、分子里含有一个或多个苯环的化合物

答案

答案：D

阅读理解

The Black family often do housework together at the weekend. Pam often cleans bedrooms. Her father buys groceries for the next week. Her mother washes the clothes. John, Pam’s brother, helps to cut the grass in the garden.

The Blacks often ride bikes to the park nearby. In the park, they can play basketball and football. They always have a good time there.

They say they like working and playing together.

小题1:How many people are there in the Black family?

A．Two.

B．Three.

C．Four.

D．Five.小题2: Who always works in the garden at the weekend?

A．John.

B．Pam’s father.

C．Pam’s mother.

D．Pam.小题3:What does the underlined（下划线的）word “groceries” mean in Chinese?

A．商店

B．食品杂货

C．家具

D．药品小题4:The Blacks like to .

A．go on a picnic

B．go shopping

C．have a rest

D．go to the park小题5:When all the family members work together, they feel .

A．happy

B．tired

C．angry

D．sad
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单项选择题

根据现行部颁规定，采用泻槽运混凝土时，其泻槽摊销费已计入（）。

A.材料费

B.其他临时工程

C.零星材料费

D.直接
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