下列各式中,错误的是( )
A:25=5
B:±64=±8
C:-62=﹣6
D:-83=﹣2
下列说法正确的是
我国东部濒临的海洋自北向南依次是( )
Wang Lei
How old is he?
1.
Where does he live?
2.
How far is it from his school?
3.
How does he get to school?
4.
Why did the whole school know him?
Because he got the first place in 5.
小明在“测量液体密度的实验”中得到的数据如下表,根据表中数据可得到液体密度为____,容器的质量为____。
实验次数
1
2
3
4
液体体积/cm3
5.8
7.9
16.7
35.1
液体和容器的总质量/g
10.7
12.8
21.6
40.0