We need some drums and trumpets for _________school show. [ ]
A. we
B. us
C. me
D. our
答案:D
患者,男,25.岁,脘腹胀满疼痛,嗳腐吞酸,呕吐不消化食物,大便不爽,舌苔厚腻,脉滑,用消积导滞法治疗,应首选()
A.麦芽
B.陈皮
C.木香
D.枳实
E.山楂
数控机床比较常见的(),有输入/输出接口损坏,功放元件得不到指令信号而丧失功能等。
A.硬件故障
B.软件故障
C.元器件故障
B.机械故障