冷媒充填过多()
A.高低压表均比正常低
B.高低压表均比正常高
C.低压表比正常低,高压表比正常高
D.低压表比正常高,高压表比正常低
参考答案:B
Are you an ordinary man or do you have any magic_______? [ ]
A. forces
B. energy
C. strength
D. powers
发展是()
A.事物的循环往复
B.事物倒退和下降的的变化
C.事物位置的变化
D.事物前进和上升的变化