消化道穿孔最有诊断意义的体征是（）
A.腹式呼吸消失
B.肠鸣音亢进
C.移动性浊音（+）
D.上腹压痛
E.肝浊音界消失
参考答案：E
Getting _______ most votes, Jack was appointed as _______ monitor.
A．the; a
B．/; a
C．the; the
D．the; /
Do you know _____? [ ]
A. how old is Jack
B. how old Jack is
C. when was Jack born
D. when Jack is born
