【判断题】当放大电路的输入信号不为零时的工作状态称为静态
【单选题】白天比赛,要减少( )的份额,而增加高能量易消化饲料数量。
【判断题】当 输入信号为零 时,放大电路的工作状态称为静态。
【单选题】We learn from the third paragraph that employees in the American PR industry ______.
A.
speak at least one foreign language fluently
B.
are ignorant about world geography
C.
are not as sophisticated as their European counterparts
D.
enjoy reading a great variety of English business publications
【简答题】当输入信号为( )时,放大电路的工作状态称为静态。
【判断题】准确控制客房状况,了解可售房数量的目的是提供准确的客房资料、提高排房效率、提高预订决策力、正确反映未租客房的损失。