我们按地理方位，把亚洲分为6个地区，中国所在的地区是[ ]
A、南亚
B、西亚
C、东亚
D、中亚
答案：C
They were all very tired, but ___of them would stop to take a rest.
A．any
B．some
C．none
D．neither
下列物质中不属于高能化合物的是
A．ADP
B．ATP
C．AMP
D．乙酰CoA
E．磷酸肌酸
