血液从右心室流向左心房是体循环。[ ]
×
-How do you like the concert given by the "Foxy Ladies"?
-Exciting. _____ one piece of music wasn't played quite well.[ ]
A. so
B. though
C. because
D. and
在Word中,不能关闭窗口的操作是()
A.单击窗口右上角的"最小化"按钮
B.按快捷键"ALT+F4"
C.选择"文件"菜单中的"退出"命令
D.双击窗口左上角的控制图标