【简答题】表面贴装的晶体管,常为黑色。表面贴装半导体器件主要采用 封装,封装形式有SOT23、 SOT89、SOT143。
【单选题】It ______last week that the haze(雾霾) in Beijing caused many problems.
【单选题】汉译英:“软包装;木托盘”,正确翻译为( )。
A.
wooden pallet;flexible package
B.
transparent package;wooden pallet
C.
flexible package;wooden pallet
D.
flexible package;transparent package
【简答题】公共关系作为一门职业和学科,最早产生于 _______ 。
【判断题】渗透压与微生物的生命活动有一定的关系。少数的耐盐菌、嗜盐菌、耐糖菌、嗜糖菌可在多糖或多盐的食品中生存。
【单选题】The novel I bought last week is()of reading I think.
【简答题】第二节 完形填空(共20小题,每小题1.5分,满分30分) Mr. and Mrs. Jones’ house was full of suitcases, packages and packed-up boxes. The two of them were ___36___with pencils and paper, ____37____their luggage, when there wa...
【单选题】Millie goes to the Reading Club _________ a week.
【单选题】公共关系作为一门职业和学科,最早产生于( )。