什么是频率附加误差?
参考答案:
由于频率的变化而引起的附加误差,称为频率附加误差。
He submitted himself to a search by the guard. Which of the following sentences has the same
meaning as the given one?[ ]
A. He submitted himself to being searched by the guards.
B . He submitted himself to be searched by the guards.
C . He is submitted himself to being searched by the guards.
D. He is submitted to being searched by the guards.
A.石油
B.煤
C.天然气
D.核电站的核能