对驾驶员在航空器活动区内违反规定或超速行驶情节一般处()元以下罚款或警告。
参考答案:400
如图是共化学反应的微观示意图.请结合图示回答下列问题
分别代表三种不同元素的原子
( 1 )从图中可以看出,化学反应中的最小微粒是______
( 2 )反应物 A 和 B 中,属于单质的是______.
He took a seat opposite Catherine, who kept her gaze fixed on him as if she feared he would vanish were she to remove it.