一般认为岩浆的发源地位于()
A.地壳上部的硅铝层
B.上地慢上部的软流层
C.地壳下部的硅镁层
D.受压力最大、温度最高的内核
参考答案:B
画出函数y=2x+6的图像,利用图象求:
(1)方程2x+6=0的解;
(2)不等式2x +6<0的解集;
(3)-3≤y≤-1时x的值范围.
The film Gone with the Wind was shot in Atlanta, the US because the novel was _____ the American Civil War.
A.lied in
B.taken in
C.set in
D.put in