题目内容
不管圆弧大小，圆弧标注一律为半径R。
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甲状腺功能亢进症合并突眼征时,采取的眼保护措施不包括( )
II.Fill in the blanks with the numbers you hear（填写阿拉伯数字即可）.1.Remember to put down the zip code when you address the envelope. Mine is.2.Sally’s aunt has just come back from France. Now she’s staying at the Pearl Hotel, Room.3.Mr. Davis lives at Water Street.4.It usually takes about minutes to get to the airport from here.5.The new coat cost me yuan.6.The Tower of London is more than years old.7.Mr. Baker has been working in the City Bank of New York for two years. He now has an annualincome of .8.New York is miles away from here.
根据道岔的用途和构造形式的不同，道岔可以分为（）。
我国铁路将()及以上的钢轨称之为重型钢轨
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