在套管断裂位置声幅曲线会出现一个明显的()尖峰。
A.高值
B.没有
C.低值
参考答案:C
A ship loaded with expensive goods was reported ________ into the sea with its oil ________ .
A.to sink ; given out
B.to have sunk ; run out
C.having sunk ; used up
D.to have sunk ; run out of
举例说明德、挪两国小市民不同的性格怎样在易卜生和歌德本人及其作品中得到反映。