She found it hard [color=#000000][u] [/u][/color][color=#000000] [/color]him as he walked fast.
A: A.keeping pace of
B: B.to keep pace with
C: C.keep pace of
A: A.keeping pace of
B: B.to keep pace with
C: C.keep pace of
举一反三
- [color=#000000]I don[/color][color=#000000]’[/color][color=#000000]t know how to [/color][color=#000000][u][b] [/b][/u][/color][color=#000000] the complicated situation.[/color] A: A.dealing with B: B.deal with C: C.dealt with
- And universities will [color=#000000][u] [/u][/color][color=#000000] [/color]the students’ scores to select outstanding ones. A: A.compare with B: B.comparing with C: C.compare
- [color=#000000]若二叉树[/color][color=#000000]T[/color][color=#000000]的前序遍历序列和中序遍历序列分别是:[/color][color=#000000]b[/color][color=#000000],[/color][color=#000000]d[/color][color=#000000],[/color][color=#000000]c[/color][color=#000000],[/color][color=#000000]a[/color][color=#000000],[/color][color=#000000]e[/color][color=#000000],[/color][color=#000000]f[/color][color=#000000]和[/color][color=#000000]c[/color][color=#000000],[/color][color=#000000]d[/color][color=#000000],[/color][color=#000000]e[/color][color=#000000],[/color][color=#000000]b[/color][color=#000000],[/color][color=#000000]f[/color][color=#000000],[color=#000000]则其后序遍历序列是[/color][color=#000000]_____[/color][color=#000000]。[/color][/color] A: c,e,a,d,f,b B: f,e,a,c,d,b C: e,a,c,d,f,b D: 答案A、B、C均不对
- [color=#000000]由下列信息求八肽的序列。 [/color][color=#000000]([/color][color=#000000]1[/color][color=#000000])酸水解得 [/color][color=#000000]Ala [/color][color=#000000],[/color][color=#000000]Arg [/color][color=#000000],[/color][color=#000000]Leu[/color][color=#000000],[/color][color=#000000]Met[/color][color=#000000],[/color][color=#000000]Phe[/color][color=#000000],[/color][color=#000000]Thr[/color][color=#000000], [/color][color=#000000]2Val[/color][color=#000000]。 [/color][color=#000000]([/color][color=#000000]2[/color][color=#000000])[/color][color=#000000]Sanger [/color][color=#000000]试剂处理得 [/color][color=#000000]DNP-Ala [/color][color=#000000]。 [/color][color=#000000]([/color][color=#000000]3[/color][color=#000000])胰蛋白酶处理得 [/color][color=#000000]Ala [/color][color=#000000],[/color][color=#000000]Arg [/color][color=#000000],[/color][color=#000000]Thr [/color][color=#000000]和 [/color][color=#000000]Leu[/color][color=#000000],[/color][color=#000000]Met[/color][color=#000000],[/color][color=#000000]Phe[/color][color=#000000],[/color][color=#000000]2Val[/color][color=#000000]。当以 [/color][color=#000000]Sanger [/color][color=#000000]试剂处理时分 [/color][color=#000000]别得到 [/color][color=#000000]DNP-Ala [/color][color=#000000]和 [/color][color=#000000]DNP-Val[/color][color=#000000]。 [/color][color=#000000]([/color][color=#000000]4[/color][color=#000000])溴化氰处理得 [/color][color=#000000]Ala[/color][color=#000000],[/color][color=#000000]Arg [/color][color=#000000],高丝氨酸内酯, [/color][color=#000000]Thr[/color][color=#000000],[/color][color=#000000]2Val[/color][color=#000000],和 [/color][color=#000000]Leu[/color][color=#000000],[/color][color=#000000]Phe[/color][color=#000000],当用 [/color][color=#000000]Sanger [/color][color=#000000]试 [/color][color=#000000]剂处理时,分别得 [/color][color=#000000]DNP-Ala [/color][color=#000000]和 [/color][color=#000000]DNP-Leu [/color][color=#000000]。[/color]
- [color=#000000]试编写递归算法,逆转广义表中的数据元素。[/color][color=#000000][color=#000000]例如,将广义表([/color][color=#000000][i]a[/i][/color][color=#000000],(([/color][color=#000000][i]b[/i][/color][color=#000000],[/color][color=#000000][i]c[/i][/color][color=#000000]),( )),((([/color][color=#000000][i]d[/i][/color][color=#000000]),[/color][color=#000000][i]e[/i][/color][color=#000000]),[/color][color=#000000][i]f[/i][/color][color=#000000])) [/color][/color][color=#000000][color=#000000]逆转为(([/color][color=#000000][i]f[/i][/color][color=#000000],([/color][color=#000000][i]e[/i][/color][color=#000000],([/color][color=#000000][i]d[/i][/color][color=#000000]))),(( ),([/color][color=#000000][i]c[/i][/color][color=#000000],[/color][color=#000000][i]b[/i][/color][color=#000000])),[/color][color=#000000][i]a[/i][/color][color=#000000])。[/color][/color]