【单选题】 ________ I didn’t know anybody at the party, I had a good time.
【单选题】把两个 20 μ F 的电容并联后,再与一个 40 μ F 的电容串联,其等效电容量为 ______ 。
【单选题】 音频
A.
It is a good working habit.
B.
It is helpful for learning.
C.
It is a waste of time.
D.
It is harmful to health.
【简答题】 Fill in the blanks with the exact words you've just heard. Unable
to 1) __________ in many activities, my father still tried to 2)
__________ in some way. When a 3) __________ baseball team found ...
【单选题】People laugh at jokes, but seldom ________ about how they work.
【判断题】用截面法求内力的步骤为:(1)切开;(2)代替;(3)平衡。(对285、串联的电容器越多,总电容量越大。