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$课文62 大火之后 650. Firemen had been fighting the forest for nearly three weeks before they could get it under control. 消防队员们同那场森林大火搏斗了将近3个星期才最后把火势控制住。 65 阅读全文
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$课文56 比声音还快！ 579. Once a year, a race is held for old cars. 旧式汽车的比赛每年举行一次。 580. A lot of cars entered for this race last year and there was a great de 阅读全文
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$课文53 触电的蛇 544. At last firemen have put out a big forest fire in California. 消防队员们终于扑灭了加利福尼亚的一场森林大火。 545. Since then, they have been trying to find o 阅读全文
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$课文50 乘车兜风 510. I love travelling in the country, but I don't like losing my way. 我喜欢在乡间旅行，但却不愿意迷路。 511. I went on an excursion recently, but my trip 阅读全文
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After optimization of structural solution ， I must prepare the bom and drawing circuit diagram as soon as possible. 1 selection the suitable component 阅读全文
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$课文47 嗜酒的鬼魂 481. A public house which was recently bought by Mr.Ian Thompson is up for sale. 伊恩.汤普森先生最近才买的一个小酒店现在又要卖出去。 482. Mr.Thompson is going to s 阅读全文
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$课文44 穿过森林 451. Mrs. Anne Sterling did not think of the risk she was taking when she ran through a forest after two men. 安.斯特林夫人在穿过森林追赶两个男人时，她并没有考虑到所冒 阅读全文
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1software flow diagram As we know, Embedded design is the core of Electronic Product Design。 Digital Timer Operation:IMPORTANT: Remember to observe al 阅读全文
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$课文41 你把那个叫帽子吗？ 422. 'Do you call that a hat?' I said to my wife. “你把那个叫帽子吗？”我对妻子说。 423. 'You needn't be so rude about it,' my wife answered as she lo 阅读全文
