人字型密封接头工艺要求中有模具预热等内容其模具预热温度为:()
A.50度左右;
B.100度左右;
C.200度左右.
参考答案:B
单句改错。每句有一处错误,请按要求改正。(共5分,每处1分)
增加:在缺词处加一个漏字符号( ^), 并在此符号下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线, 并在该词下面写出修改后的词。
注意::每处错误及其修改均仅限一词;每句超出一处的改正记零分。
小题1:I'm fond of wash my clothes.
小题2:Two millions students go to collage for their further study every year.
小题3:The boys who is working on the school newspaper are expected to be reporters.
小题4:The classroom who windows face the south is as big as that one.
小题5:He passed the examination, it made his mother happy.
组成局域网的三个部分是:网络工作站点、网络电缆连接和( )
A.网络操作系统 B.网络防火墙 C.网络打印机 D.网络服务器