在一列数x1,x2,x3,…中,已知x1=1,且当k≥2时,xk=xk-1+1-

题型:填空题

问题:

在一列数x1,x2,x3,…中,已知x1=1,且当k≥2时,xk=xk-1+1-4([
k-1
4
]-[
k-2
4
])

(符号[a]表示不超过实数a的最大整数,例如[2.6]=2,[0.2]=0),则x2010等于 ______.
考点:有理数的加减混合运算
题型:填空题
Welcome to the City Zoo. There are many 1 in the zoo. Let’s see the koalas first. Koalas are 2 Australia. They are quiet, 3 and cute. Children like them very much. The kangaroos(袋鼠) are also from 4. They are quiet and interesting, 5 they are not friendly.
The giraffes come from Africa. They have 6 necks(脖子). They like to eat leaves. The lions are also from Africa. They are brave but a little 7. Many people don’t like 8. We also have pandas. They are from China. They are very cute and friendly, but they are very shy. So please be 9.
You 10 see many other animals in the zoo. Have fun and enjoy yourself here!
小题1:
A.childrenB.flowersC.animalsD.vegetables
小题2:
A.atB.fromC.inD.with
小题3:
A.friendlyB.successfulC.uglyD.difficult
小题4:
A.CanadaB.ChinaC.AmericaD.Australia
小题5:
A.orB.butC.andD.so
小题6:
A.shortB.bigC.longD.small
小题7:
A.smartB.cleverC.difficultD.dangerous
小题8:
A.itB.youC.usD.them
小题9:
A.busyB.cleanC.quietD.new
小题10:
A.also canB.can alsoC.too canD.can too
题型:填空题
脱式计算
1
6
×
2
3
÷(
4
5
-
8
15
)

3
4
×[1÷(
5
6
+
2
3
)]
题型:填空题

语文教科书构成因素有哪些?

题型:填空题

发现问题的核心是()

A.提出问题

B.讨论问题

C.界定问题

D.选择问题

题型:填空题

药物化学结构修饰的目的不包括()

A.延长药物的作用时间

B.减低药物的毒副作用

C.改善药物的吸收性能

D.改善药物的溶解性能

E.提高药物对受体的结合能力,增强药物的活性

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