【单选题】测量液体压力时,取压点应在管道下部,使导压管内不积存( )
【单选题】听力原文:M: Do you know that Chinese first played football hundreds of years ago?F: But now the Europeans play it well. What does the woman think?
A.
She thinks the Japanese first got to know how to play football.
B.
She doesn't think football came from China.
C.
She thinks the Europeans play football better.
【单选题】From the passage, we know that Wang Hui is a new graduate student in New York.
【单选题】听力原文:M: It says hare the next train is due in at 7:50. F: I know, but I don't know whether I can make that one. I'd rather call you from the station than have you waiting around for an hour. Q: What d...
A.
She asks the man to wait for her at the train station.
B.
She will call the man when she arrives at the station.
C.
She and the man will take the 7:50 train.
D.
She is sorry for keeping the man waiting for her for an hour.
【单选题】数控机床检测反馈装置的作用是将其准确测得的( )数据迅速反馈给数控装置,以便于与加工程序给定的指令值进行比较和处理。
【单选题】数控机床检测反馈装置的作用是将其准确测得的( )数据迅速反馈给数控装置,以便与加工程序给定的指令进行比较和处理。
【单选题】以下关于用集线器扩展局域网的叙述中,错误的是( )。
A.
使原来属于不同碰撞域的局域网上的计算机能够进行跨碰撞域的通信
【判断题】用集线器扩展局域网,使原来属于不同碰撞域的局域网上的计算机能够进行跨碰撞域的通信。扩大了局域网覆盖的地理范围