选择下列输入的运行结果ReplaceList[a-b+c,x_+y_-> g[x,y]]? {g[a,-b+c],g[-b,a+c],g[c,a-b],g[a-b,c],g[a+c,-b],g[b+c,-a]}|{g[a,-b+c],g[-b,a+c],g[c,a-b],g[a-b,c],g[a+c,-b],g[-b+c,a]}|{g[a,-g[b,c]]}|{g[a,-b+c],g[a-b,c]}
选择下列输入的运行结果ReplaceList[a-b+c,x_+y_-> g[x,y]]? {g[a,-b+c],g[-b,a+c],g[c,a-b],g[a-b,c],g[a+c,-b],g[b+c,-a]}|{g[a,-b+c],g[-b,a+c],g[c,a-b],g[a-b,c],g[a+c,-b],g[-b+c,a]}|{g[a,-g[b,c]]}|{g[a,-b+c],g[a-b,c]}
以下所示为一段DNA序列,期中顶链为编码链: C G A T A A T G T C C G A C C A A G C G A T C T C G T A G C A G C T A T T A C A G G C T G G T T C G C T A G A G C A T C G T 写出该段DNA转录的mRNA序列,并标出起始密码子和终止密码子。
以下所示为一段DNA序列,期中顶链为编码链: C G A T A A T G T C C G A C C A A G C G A T C T C G T A G C A G C T A T T A C A G G C T G G T T C G C T A G A G C A T C G T 写出该段DNA转录的mRNA序列,并标出起始密码子和终止密码子。
A(g)+ B(g)=C(g)
A(g)+ B(g)=C(g)
A(g)+ B(g)=C(g)
A(g)+ B(g)=C(g)
下列化学反应的△H前者大于后者的是( )①C(s)+O2(g)=CO2(g)△H1C(s)+12O2(g)=CO(g)△H2②2H2(g)+O2(g)=2H2O(g)△H32H2(g)+O2(g)=2H2O(l)△H4③2H2(g)+O2(g)=2H2O(g)△H5H2(g)+12O2(g)=H2O(g)△H6④C(s)+CO2(g)=2CO(g)△H7CO(g)+12O2(g)=CO2(g)△H8. A: ①③ B: ②④ C: ①②③ D: ①②④
下列化学反应的△H前者大于后者的是( )①C(s)+O2(g)=CO2(g)△H1C(s)+12O2(g)=CO(g)△H2②2H2(g)+O2(g)=2H2O(g)△H32H2(g)+O2(g)=2H2O(l)△H4③2H2(g)+O2(g)=2H2O(g)△H5H2(g)+12O2(g)=H2O(g)△H6④C(s)+CO2(g)=2CO(g)△H7CO(g)+12O2(g)=CO2(g)△H8. A: ①③ B: ②④ C: ①②③ D: ①②④
资本总公式是() A: W—G—W B: G—W—G C: G——G’ D: G—W—G’
资本总公式是() A: W—G—W B: G—W—G C: G——G’ D: G—W—G’
资本总公式是() A: W—G—W B: G—W—G C: G—W—G′ D: G—G′
资本总公式是() A: W—G—W B: G—W—G C: G—W—G′ D: G—G′
资本总公式是( )。 A: W —G —W B: G — W — G C: G — W — Gˊ D: G — Gˊ
资本总公式是( )。 A: W —G —W B: G — W — G C: G — W — Gˊ D: G — Gˊ
*下列 反应的△rHmθ (298K)就是△fHmθ (CO2, g,298K)。 (A) CO(g)+1/2O2(g)=CO2(g) (B) C(金刚石)+O2(g)=CO2(g) (C) C(石墨)+O2(g)=CO2(g) (D) CO2(g) = C(石墨)+O2(g)
*下列 反应的△rHmθ (298K)就是△fHmθ (CO2, g,298K)。 (A) CO(g)+1/2O2(g)=CO2(g) (B) C(金刚石)+O2(g)=CO2(g) (C) C(石墨)+O2(g)=CO2(g) (D) CO2(g) = C(石墨)+O2(g)
*下列反应的△rHmθ(298K)就是△fHmθ(CO2,g,298K)。 (A)CO(g)1/2O2(g)=CO2(g)(B)C(金刚石)O2(g)=CO2(g) (C)C(石墨)O2(g)=CO2(g)(D)CO2(g)=C(石墨)O2(g)
*下列反应的△rHmθ(298K)就是△fHmθ(CO2,g,298K)。 (A)CO(g)1/2O2(g)=CO2(g)(B)C(金刚石)O2(g)=CO2(g) (C)C(石墨)O2(g)=CO2(g)(D)CO2(g)=C(石墨)O2(g)