QBZ—120磁力启动器的电源电压过低，按下启动按钮，开关将（）。
A、跳动
B、不吸合
C、也能闭合
D、吸合
参考答案：B
I’m putting on weight. The doctor has warned me to sugar.
A．keep off
B．keep up
C．keep off
D．keep away
基本培养基
