酱用番茄应用膜下滴灌技术，可实现节水（）%、节肥22%、产量高达8-9吨/亩。
A、45.6
B、55.6
C、65.6
参考答案：B
如图所示，A、B为两个闭合金属环挂在光滑的绝缘杆上，其中A环固定，现给A环中分别通以如下图所示的四种电流，其中能使B环在0～t1时间内始终具有向右加速度的是
A.
B.
C.
D.
In relation to the Companies Act, 2006, explain the duty of directors to promote the success of the company, and to whom such a duty is owed. (10 marks)
