用电负荷按供电可靠性要求分为()类
参考答案:3
根据汉语填写单词或根据所给词填写适当形式。
1. What's _______ (she) name?
2. Look at these _______ (照片), please.
3. Can you _______ (拼写) it, please?
4. Bill _______ (watch) TV every day.
5. Mary's brother and sister are _______ (run).
下列飞行指挥安排、飞行次序调配的原则中,()是错误的?
A.一切飞行让战斗飞行
B.其他飞行让专机飞行和重要任务飞行
C.国内一般任务飞行让班期飞行
D.场外飞行让场内飞行