当放大系数为1.40时,UPC-E商品条码的条码符号高度为()。
A、33.6mm
B、36.3mm
C、36.4mm
D、33.5mm
参考答案:B
The doctors did all they could_________ him_________. [ ]
A. to bring; back to life
B. bring; back to life
C. bring ; to life
D. to bring ; to living
resume()方法负责恢复被( )方法挂起的线程。
A.stop()
B.sleep()
C.wait()
D.suspend()