采(配)气站严禁(),是防爆措施之一。
参考答案:烟火
—What is your hobby?
—I ________ collecting stamps, but now I love reading.
A.used enjoy
B.used to enjoy
C.use to enjoying
D.used to enjoying
按传输技术分类,计算机网络可分为
A.点—点式网络和广播式网络
B.资源网和通信网
C.局域网、城域网和广域网
D.星型网、总线型网和环型网