A、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US">b</span></sub>
B、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US">s</span></sub>
C、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="FONT-FAMILY: "><span style="mso-spacerun: yes"></span></span><span lang="EN-US" style="FONT-FAMILY: Symbol; FONT-SIZE: 10.5pt; mso-ascii-font-family: ; mso-bidi-font-size: 10.0pt"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US" style="FONT-FAMILY: ">e</span></sub></span></span><span lang="EN-US"><span lang="EN-US" style="COLOR: red"><p></p></span></span>
D、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US">p</span></sub><span lang="EN-US"></span>
A、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US">b</span></sub>
B、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US">s</span></sub>
C、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="FONT-FAMILY: "><span style="mso-spacerun: yes"></span></span><span lang="EN-US" style="FONT-FAMILY: Symbol; FONT-SIZE: 10.5pt; mso-ascii-font-family: ; mso-bidi-font-size: 10.0pt"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US" style="FONT-FAMILY: ">e</span></sub></span></span><span lang="EN-US"><span lang="EN-US" style="COLOR: red"><p></p></span></span>
D、<span lang="EN-US" style="FONT-FAMILY: Symbol; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'; mso-char-type: symbol; mso-symbol-font-family: Symbol"><span style="mso-char-type: symbol; mso-symbol-font-family: Symbol">s</span></span><sub><span lang="EN-US">p</span></sub><span lang="EN-US"></span>