【单选题】最早正式使用“班级”一词的是著名教育家()
【单选题】微分思想与积分思想两种思想()出现得更早。
【简答题】最早正式使用“班级”一词的著名教育家是____________。
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率最大。
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率 为50% 。
【单选题】New oak tables are normal goods. What would happen to the equilibrium price and quantity in the market for oak tables if the price of maple tables rises, the price of oak wood rises, more buyers ente...
A.
Price will fall and the effect on quantity is ambiguous.
B.
Price will rise and the effect on quantity is ambiguous.
C.
Quantity will fall and the effect on price is ambiguous.
D.
Quantity will rise and the effect on price is ambiguous.
【单选题】New oak tables are normal goods. What would happen to the equilibrium price and quantity in the market for oak tables if the price of maple tables rises, the price of oak wood rises, more buyers ente...
A.
Price will rise and the effect on quantity is ambiguous.
B.
Quantity will fall and the effect on price is ambiguous.
C.
Quantity will rise and the effect on price is ambiguous.
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率为50%。
【单选题】There a film tomorrow night.
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率最大。