亚当斯密提出的税收原则包括______
A．平等原则
B．便利原则
C．确实原则
D．收入原则
E．节约原则
参考答案：A,B,C,E
192. You are only allowed to take less than 30 kilograms of carry-on(随身携带的)__________onto a plane.
A．food
B．luggage
C．fruits
D．Bag
—The sports shoes must be Linda's.
—No, they ______ be. They're too small for her. [ ]
A. mustn't
B. can't
C. may not
D. might not
