将二次函数y=x2的图象向右平移1个单位,在向上平移2个单位后,所得图象的函数表达式是( )。
y=(x﹣1)2+2
_____ China has become a member of WTO, English is more popular than before.[ ]
A. Since
B. Though
C. Whether
D. If
给电子体计量泵在启动前应确认泵的流量设定在()。
A、0%
B、50%
C、100%
D、25%