A、胸骨左缘第4肋间隙锁骨中线外1~2cm处
B、胸骨左缘第4肋间隙锁骨中线上初
C、胸骨左缘第5肋间隙锁骨中线外1~2cm
D、胸骨左缘第5肋间隙锁骨中线内05~1cm
A、半坐卧位
B、头低位
C、胸膝卧位
D、抬高下肢15-30°
Theyareeager_______abroad.
A、travel
B、travelled
C、totravel
D、travelling
Mywalletisnowheretobefound.I_____itwhenIwasonthebus.
A、mustdrop
B、shouldhavedropped
C、haddropped
D、musthavedropped
Howmanypartsisanarticleusuallycomposedof?Whatarethey?