- I really want to join the square dance. Can I learn the dance well?
- Yes, Mom! Nothing is impossible ______ you put your heart into it!
A:as long as
B:as soon as
C:even if
D:unless
, =____
算式____×____+ ____=____
(2015•抚顺)a、b、c是三个轻质带电泡沫小球,它们相互作用情况如图所示.已知a带负电,则b带____ 电.若用丝绸摩擦过的玻璃棒去靠近c,二者将相互____ (选填“吸引”或“排斥”).