小明用两根长2米、两根长1米的木条摆成一个长方形,这个长方形的周长是______米.
(2+1)×2=6(米)
答:这个长方形的周长是 6米.
故答案为:6.
单词拼写。
1. W so long time really made him angry.
2. Tom won't go to Hainan. Larry will go, i .
3. Last month, we had a talent show which was a great s .
4. I like T , the day before Friday best.
5. Take your coat, there will be w tomorrow.
6. My brother doesn't feel scared when he is left a .
7. Do you know who i the computer first?
8. I like pop music because it makes me r .
9. At the b of the class, all the students are noisy.
10. After his father's d , his life became much harder.
高压喷射注浆法加固地基的机理有:
A.高压喷射流对土体的破坏作用
B.水浆、气同轴喷射流对土的破坏作用
C.水泥与土的固结机理
D.排水固结作用
E.置换作用