复数z=i+i2+i3+i4的值是[ ] A.-1 B.0 C.1 D.i

题型:选择题

问题:

复数z=i+i2+i3+i4的值是[ ]

A.-1

B.0

C.1

D.i

考点:复数的四则运算
题型:选择题

▱ABCD的周长为48cm,对角线相交于点O;△AOB的周长比△BOC的周长多4cm,则AB,BC的长分别等于______cm,______cm.

题型:选择题

用所给动词的适当形式填空

1.Tomorrow is my birthday. They are talking about ___________(have) a birthday party for me.

2. It’s 8:30 p.m. now. My parents ___________(watch) TV.

3. ___________(not talk) in class, please!

4. John has many different kinds of ___________ (toy) in his room.

5. Now we don’t have to ___________ (do) too much homework every day.

6. Would you like __________ (go) fishing with me?

7. This is my __________ (one) time to see pandas, and I am very excited.

8. How much __________ (be) this pair of shoes ?

9. It is lunchtime, Hobo. Let’s __________ (have) a hamburger.

10. You can __________ (see) many beautiful flowers in the garden.

题型:选择题

小儿心肺复苏抢救时,须将患儿

A.仰卧于软床垫上
B.侧卧于软床垫上
C.侧卧于硬实平整的地方
D.仰卧于硬实平整的地方
E.任何体位,软或硬地方均可

题型:选择题

关于呼吸的描述,错误的是

A.呼吸是从环境中摄取氧气,排出二氧化碳
B.气体的交换在肺动脉和肺静脉之间
C.靠膈肌运动进行的呼吸为腹式呼吸
D.靠肋间肌运动进行的呼吸为胸式呼吸
E.呼吸由中枢神经系统的呼吸中枢调节

题型:选择题

在委托监理的工程中,工程监理企业与承建单位不得有隶属关系和其他利害关系,这是按照建设工程监理的( )要求的。

A.公正性
B.服务性
C.科学性
D.独立性

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