患儿经补液纠正脱水酸中毒后发生惊厥可能的原因是
A.低钠血症
B.低钾血症
C.低钙血症
D.低血糖
E.碱中毒
参考答案:C
雅典城邦民主政治最终确立于
A.公元前7世纪
B.公元前6世纪
C.公元前5世纪
D.公元前4世纪
If people feel hopeless,they don't bother to _____ the skills they need to succeed. [ ]
A. adopt
B. associate
C. accumulate
D. acquire