SY9300TSJ500砂浆车的液压系统中用于调节压力的是()。
A.电磁换向阀
B.单向阀
C.溢流阀
D.单向节流阀
参考答案:C
阅读下面短文,根据汉语或首字母提示以及文章内容,在每条横线上填入一个适当的英语单词,使短文意思完整。
Over time computers have been changed quite a lot. The computer was c_____小题1:______ a technological revolution and the start of articficialintelligence. Alan Turning ____小题2:____ a book about how the computer couldbe made to work as a u 小题3: machine to solve any difficult mathematicalproblem. From then on, it grew r_____小题4:____ both in size and in brainpower.
By the 1940s it had grown as large as a room. As time ____小题5:____ by, itwas made smaller. In the early 1960s people could share ____小题6:____(知识)with each other through the World Wide Web. ___小题7:____ the 1970s manynew ___小题8:______(应用) have been found and computers become veryimportant in communication, finance and trade. B__小题9:____, it has beenput into___小题10:____(机器人) and used to make mobile phones as well as
help with medical operations.