【简答题】由三极管构成的基本放大电路有三种形式,即( )放大电路、( )放大电路和( )放大电路。
【判断题】绘制机械图样时,绘图比例没有优选系列,制图者可根据需要自行确定。
【单选题】In the third sentence of paragraph, the 'troubled issue' refers to______.
A.
the death of the old king
C.
the succession to the crown
D.
the quarrel among the powerful lords
【判断题】在古埃及,方尖碑代表着太阳的光芒和生命,成为太阳崇拜的象征之一( )。
【单选题】The author associates the issue of global warming with that of smoking because ______.
A.
they both suffered from the government's negligence
B.
a lesson from the latter is applicable to the former
C.
the outcome of the latter aggravates the former
D.
both of them have turned from bad to worse
【判断题】绘制机械图样时,绘图比例没有优选系列,制图者可根据需要自行确定。