题目:
氧含量
答案:
参考答案:
100ml血液中血红蛋白实际结合的氧量。氧含量主要受氧分压影响。
氧含量
参考答案:
100ml血液中血红蛋白实际结合的氧量。氧含量主要受氧分压影响。
What's in your schoolbag?[ ]
A. 30 pencils.
B. Green.
计算:
(1)(3a3)2•(2b2)3÷(6ab)2
(2)-3a(2a2-a+3)
(3)(2x+1)(2x-1)-(2x-3)2
(4)[(2x+y)2-y(y+4x)-8x]÷2x.
下列对公安机关的表述正确的是( )。
A.公安机关是权力最大的国家司法机关
B.公安机关是单纯的行政执法机关
C.公安机关是具有武装性质的特殊军事单位
D.公安机关是兼有刑事执法职能的行政机关
中医学认为生命的本源物质是
A.精气
B.血
C.津
D.液
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