探究历史发展的共性是学习历史的任务之一,请找出俄国1861年改革和日本明治维新的共同点[ ]
A.推翻了旧 * *
B.由资产阶级领导
C.废除农奴制
D.改变了社会性质
答案:D
高渗性缺水的治疗主要是纠正高渗状态,下列液体中首选()。
A.等渗盐水
B.5%葡萄糖溶液
C.平衡盐溶液
D.10%葡萄糖溶液
E.5%葡萄糖氯化钠溶液
An infinite sequence of positive integers is called an "alpha sequence" if the number of even integers in the sequence is finite. If S is an infinite sequence of positive integers, is S an alpha sequence ?() (1)The first ten integers in S are even. (2)An infinite number of integers in S are Odd.
A.条件(1)充分,但条件(2)不充分.
B.条件(2)充分,但条件(1)不充分.
C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D.条件(1)充分,条件(2)也充分.
E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.