只要胆囊腔内有结石即表明伴有急性胆囊炎,这种提法()
A.正确
B.错误
C.有理论根据
D.与临床诊断相符
参考答案:B
—How nice the music sounds !
—It does! The peaceful music will make you feel .
A. excited
B. bored
C. moved
D. relaxed
注塑机组停车时要先关掉外围辅助设备,然后才能逐一停注塑机。