肝源性水肿患者不伴有的体征是()
A.肝-颈静脉反流征阳性
B.双下肢水肿
C.蜘蛛痣
D.腹壁静脉曲张
E.脾大
参考答案:A
某无色透明溶液,跟金属铝反应放出H2,试判断下列离子:Mg2+、Cu2+、Ba2+、H+、Ag+、SO42-、
SO32-、HCO3-、OH-、NO3-,何者能存在于此溶液中?
(1)当生成Al3+时,可能存在___________。
(2)当生成AlO2-时,可能存在____________。
--- Who went to the beach yesterday?
--- All my family went there ____ my son. He should study for the test at school.
A.besides
B.with
C.and
D.except