【判断题】接触角越小,液体在固体表面的润湿(wetting) 性能越差,反之,润湿性能越好。
【简答题】润湿滞后(wetting hysteresis)
【单选题】In all,6 000 companies are __________ in producing the parts that are needed for these aircraft.
【单选题】从远程计算机(或称为FTP服务器)复制文件到本地计算机(或称为FTP客户端)称为( )文件。
【单选题】All is needed is a supply of oil.A.the thingB.thatC.whatD.which
A.
All ____is needed is a supply of oil. A.the thing
【多选题】高血压定义为收缩压 [填空(1)] 和(或)舒张压 [填空(2)] 。