【单选题】My mother often stops me from _________ TV for too long.
【单选题】蠕虫病毒是一种主要通过( )传播的恶性病毒。
【单选题】If there are two or more different substituents when listing them in alphabetical order, we can not ignore ____
A.
the prefixes sec- and tert-
B.
the prefixes iso- and neo-
C.
multiplying prefixes di, tri, tetra.
【单选题】Don't watch TV _______, it's bad for your eyes. [ ]
【单选题】单选和复选框按钮使用什么属性来决定其是否选中
【单选题】单选和复选框按钮使用什么属性来决定其是否选中?而下拉列表和列表框使用什么属性了决定其是否选中?
C.
前者是checked,后者是selected
D.
后者是checked,前者是selected