【单选题】19 ( )拓扑结构是将网络的各个节点通过中继器连接成一一个闭合环路。
【判断题】在化学反应中,凡能释放出H+的化学物质称为酸。
【单选题】The words on the cardboard “I’m blind, Please help” do not seem to draw much attention because _____.
A.
the words have a commanding air that annoys people
B.
the demand for help is not direct and strong enough
C.
people tend to ignore such familiar street side scenes
D.
the language is too simple, and not eye-catching
【单选题】Of the following pairs of words gradable antonymy is best illustrated by ______.
【单选题】在组织结构的形式中,目前最广泛采用的组织形式是( )。
【单选题】The body language is closely related to______.
【单选题】Which of the following words best describes what the author saw when they m-rived in Jackson?