消化系统疾病中常见的护理诊断有()
A．疼痛
B．体液不足
C．便秘
D．腹泻
E．营养失调
参考答案：A, B, C, D, E
抓铲挖土机的挖土特点是( )。
A．后退向下，强制切土
B．后退向下，自重切土
C．直上直下，自重切土
D．前进向上，强制切土
The football player felt extremely _____________ after they won the game.
A．luck
B．lucky
C．luckily
D．unlucky
