【单选题】螺纹连接修理时,遇到难以拆卸的锈蚀螺纹,这时可以采用的辅助措施不包括()。
A.
用煤油浸润,再用工具拧紧螺母或螺钉就容易拆卸
【判断题】拍摄事物的瞬间状态,需要使用较高速的快门。
【单选题】听力原文: St. Valentine's Day has roots in several different legends that have found their way to us through the ages. One of the earliest popular symbols of the day is Cupid, the Roman god of love, who i...
【简答题】任务型阅读:根据短文内容,填写下列各题。 John is an American boy. His family is in China now. John likes chocolates(巧克力) very much. But his mother doesn’t give him any. They are not good for him, she thinks. But John has...
【单选题】(48130)三角坑指一定间距(2.5m基长)的()水平差。
【简答题】阅读理解。 In the small town of St. Petersburg during the mid to late 1800's, lived a boy named Tom Sawyer. He is a clever and naughty boy who doesn't have many friends. Will Tom make good choices and find...
【单选题】OO技术中,存储和操作的基本单位是( )
【简答题】某出口公司A同新加坡的客户因价格条款发生了一些分歧,一直争执不下。A与这个客户做的业务是通过空运方式进行运输的,A认为“CIF”只适用于“海运及陆运方式”而不适用于“空运方式”,所以坚持用“CIP”条款(并且银行方面也坚持按照国际惯例空运必须使用“CIP”)。可客户坚持要用“CIF”,他们认为“CIW”比“CIF”多一个费用。请问“CIP”与“CIF”在费用上有什么区别?A的做法是不是正确?
【简答题】根据短文内容,判断正(T)误(F)。 Xiao Ming is a middle school student. He is a good boy, and he studies very hard. But his family is very poor, because his mother got ill a few years ago, and his father has no job....