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阅读材料和①②两海湾图，回答下列问题。 材料：风暴潮是一种灾害性的自然现象，通常指台风和温带气旋等天气系统导致海水潮位大大超过平常潮位的现象。海水在日、月引潮力作用下，表现出垂直方向的潮位升降（涨落）和水平方向的潮流进退。通常发生在白天的被称为潮，夜间的被称为汐。 （1）说明图中①②两海湾风暴潮的主要类型及风暴潮多发季节的不同。 _______________________________________________________________________________ （2）为了预防和减轻风暴潮造成的严重损失，可以采取哪些应对措施？ _______________________________________________________________________________
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【简答题】一般而言，拆卸机箱并且把电源装入是个人计算机组装的第（）步.
【单选题】听力原文： A young man who refused to give his name dived into the river yesterday morning to save a twelve-year-old boy. The boy ran away after he was rescued. He had been swimming in the river and had ca...
A.
He fell into the river but couldn't swim.
B.
He fell into the river together with his bike.
C.
He had his foot caught between two posts in the river.
D.
He dived into the river but couldn't reach the surface.
【简答题】A naughty dog went into the back of a butcher’s shop(肉铺). He saw a big meaty bone. He decided to take it with him. 60 He ran out of the shop, carrying the bone in his mouth, and rushed into the f...
【简答题】阅读理解。 One day, a little monkey and a little fox went out to play. They saw an apple tree on the other side of the river. There were many big and red apples on it. But there was no bridge over the rive...
【简答题】试用4片主从JK触发器设计一同步十进制计数器，并将其输出信号用与非门电路译码后控制红(R)、绿(G)、黄(Y)3个交通灯。要求一个工作循环为：红灯亮30s、黄灯亮10s、绿灯亮50s、黄灯亮10s。要求写出设计过程，画出CP、R、G和Y的波形图和逻辑电路图。
【简答题】背景：
——合理安排起重机，提高设备利用率
业主与工程公司签订了某机电工程项目施工合同,业主与工程公司就施工进度安排取得了一致意见(进度计划见网络图),施工过程e和g工作共同用一台塔吊。
施工过程中由于业主图纸送达延误,致使b工作推迟10天。如图所示。 问题： (1)在原计划网络图的条件下,计算计划工期,找出关键线路,并分析如果先e后g工作使用塔吊,塔吊的合理进场时间。 (2)用图示说明...
【简答题】One day, a little monkey and a little fox went out to play. They saw an apple tree on the other side of the river. There were many big and red apples on it. But there was no bridge over the river. The...
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