A、<span style="FONT-FAMILY: 宋体;FONT-SIZE: 10.5pt; mso-bidi-font-size: 10.5pt">水一定是从高处向低处流<span lang="EN-US"><span style="mso-spacerun: yes"></span></span></span><p></p><p></p>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 10.5pt">水一定是从流速大处向流速小处流<span lang="EN-US"><span style="mso-spacerun: yes"></span></span></span><p></p><p></p>
C、<span style="FONT-FAMILY: 宋体;FONT-SIZE: 10.5pt; mso-bidi-font-size: 10.5pt">水一定是从压强大处向压强小处流<span lang="EN-US"><span style="mso-spacerun: yes"></span></span></span><p></p><p></p>
D、<span style="FONT-FAMILY: 宋体;FONT-SIZE: 10.5pt; mso-bidi-font-size: 10.5pt">水一定是从机械能大处向机械能小处流<span lang="EN-US"></span></span><p></p><p></p>