若关于x的方程x2+(a-1)x+a2=0的两根互为倒数,则a=______.

题型:填空题

问题:

若关于x的方程x2+(a-1)x+a2=0的两根互为倒数,则a=______.

考点:一元二次方程根与系数的关系
题型:填空题

患者女性,24岁。在春季旅游中突感胸闷,呼吸困难,全身大汗。查体:口唇发绀,呼吸急促,双肺布干性啰音,心率90次/分,律齐。过去曾有类似发作,休息后自行缓解。

应给予的治疗药物有()。

A.速尿

B.地西泮

C.氨茶碱

D.沙丁胺醇

E.异丙托溴胺

F.甲基强的松龙

题型:填空题
计算:
(1)23×(-5)-(-3)÷
3
128

(2)-72-5×(-2)3+10÷(1-2)10
题型:填空题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.

 51 It is considered a healthy practice if both the parents show equal participation in designing the baby’s room. This helps to create a special bond between the baby and the parents even before the baby is born.   52  Which one will suit your baby’s and your requirements should be determined so that designing the layout(布局) becomes easier.

  53 Pink baby room ideas for girls are the most suitable ones. Installing pink colored furniture, curtains and toys will make one of the best girl baby room ideas.   54  Yellow and orange or pink and brown baby room ideas prove to be neutral and can be opted(选择) for, if the gender of the baby is not known or if you are expecting twins. Another great alternative can be to paint cartoon pictures or a theme onto the walls to implement(实现) cute baby room wall ideas. If you are planning to set a theme for your baby’s room, then baby room mural ideas will provide you with the dramatic touch you want to add to the room.

  55  Picking up a theme from a fairytale, story books, nursery rhymes, cartoon series, etc. can prove to be educational as well as creative baby room ideas. Painting the walls according to the theme with every incident sketched on each wall is a creative baby room mural idea. If you want your baby to wake up to the beauty of nature, jungle baby room ideas will suit your needs. Painting the walls with trees and animals or installing a wall paper with eye-catching scenery can have a great effect on the baby. Celebrity baby room ideas are desirable for those crazy about Hollywood. Stars’ room or design the room with photos and belongings of the actor.

A.There are a lot of baby room ideas.

B.A baby’s room should have bright colors.

C.Boy’s baby room ideas can have a sports theme.

D.If ou are expecting twins, go for twin baby room ideas.E. Setting a baby room theme is a good idea for baby rooms.

F. Baby room ideas for boys will include everything set in blue.

G. The baby’s room should have a pleasant and happy environment.

题型:填空题

关于房地产估价结果的说法,错误的是()。

A.估价结果是通过估价活动得出的估价对象价值或价格及提供的相关专业意见

B.注册房地产估价师在完成估价之前应征求估价委托人对估价结果的意见

C.估价结果可能与估价对象在市场上进行交易的成交价格有所不同

D.估价结果可能受注册房地产估价师的专业水平和职业道德的影响

题型:填空题

潜孔钻机是利用潜入孔底的冲击器与钻头对矿物进行冲击破碎,其主要特点是()。

A.一次成孔

B.排渣方便

C.结构简单、造价低廉

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