中心静脉压正常、血压降低时,应选择()
A.适当补液
B.充分补液
C.扩张血管
D.强心、利尿
E.补液试验
参考答案:E
It was amazing that the army _______ its homeland against all enemies.
A.defended
B.defeated
C.preserved
D.prevented
叠瓦状断层