一个正多面体有12条棱,6个顶点,则该正多面体的面数为( )。

题型:填空题

问题:

一个正多面体有12条棱,6个顶点,则该正多面体的面数为(    )。

考点:有理数的混合运算
题型:填空题

补全对话

根据对话内容, 从对话后的选项中选出能填入空白处的最佳选项.选项中有两项多余选项.

   1  

— What is it,  John? You will ask for a leave from Professor Li's class again?

— No,  no.My cousin is coming on Thursday and I promised my aunt to look after her.On Friday,  I

      must be on duty at the library all day.   2  

— OK,  I am free on Friday.What kind of things does she like to do?

— She probably enjoys anything on campus (校园).You may show her around on our campus.

  3   

— I think there are no other things than painting that can make my cousin happy.You know,  she wants

     to apply for the arts as her major in university.

— That's so great.I may find a friend with the same hobby.And I know that an exhibition is being held

      on the arts department on campus.

   4  I'll plan on dropping her off at your place on the way to work,  around eleven.

— Sounds good.Meantime I'll keep Saturday open.

— I hope this works out.I feel kind of responsible.And I want her to have a good time.   5   

— No problem.

A. How about the time schedule?

B. Is she interested in the painting exhibition?

C. Do you have any idea what the schedule is like?

D. What can I do for you?

E. Anyway I really appreciate your help.

F. Could you do me a favor?

G. And I'm wondering if you can show her around that day.

题型:填空题

人体中活力很强的运行不息的精微物质是

A.精

B.气

C.血

D.津

题型:填空题

安许茨型罗经正常工作时,陀螺球赤道线比随动球有机玻璃块上两条水平红刻线所确定的平面(),并允许有()的变化范围。

A.低2mm;±1mm

B.低2cm;±1cm

C.高2mm;±1mm

D.高2cm;±1cm

题型:填空题

1890年美国制定了《克雷顿反垄断法》等法律对行业的经营活动进行管理。( )

题型:填空题

患者女性,32岁,甲状腺功能亢进病史半年,妊娠三个月,甲亢症状加重,治疗宜选

A.卡比马唑
B.甲巯咪唑
C.普萘洛尔
D.甲基硫氧嘧啶
E.丙基硫氧嘧啶

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