问题 问答题 简答题

丝网印刷的特点?

答案

参考答案:

墨层厚实,色泽鲜艳,遮盖力强。

油墨适应性强。丝网印刷无传墨、匀墨装置,可使用各种油墨。

版面柔软,印刷压力小,可在玻璃等易损材料上完成印刷。

承印物范围广,承印物形状、大小不受限制。

丝网印刷的缺点是印版耐印力较低,印刷速度不高,不适于大批量印刷。另外,印刷细小线条易出现锯齿形条文,网点再现性较差。

完形填空
One day a mother rat and her babies were out in an open field. They were playing and having a good time when   26  a hungry cat came on the scene! It hid   27  a big tree and then   28  forward through the tall grass   29  it could almost hear them talk.  30  the mother rat and her babies knew   31  had happened, the cat   32  from its hiding place and started to run   33  them.
The mother rat and her babies all   34  at once. They hurried towards   35  home, which was under a pile of large stones.   36  the baby rats were   37  frightened that they could not run very   38 . Closer and closer the cat came. In no time the cat would be upon   39 . What was to be done?
The mother rat stopped running,   40  round and faced the cat,   41,"Bow Wow! Bow Wow! "just like   42  angry dog. The cat was so surprised and   43  that it ran away.
The mother rat turned to the babies, "Now you see  44  important it is to learn 45   second language!"
小题1:
A.naturallyB.suddenlyC.nearlyD.certainly
小题2:
A.onB.betweenC.byD.behind
小题3:
A.crawled(爬)B.jumpedC.lookedD.put
小题4:
A.beforeB.whenC.untilD.while
小题5:
A.BeforeB.AfterC.UnlessD.Otherwise
小题6:
A.whereB.whatC.whichD.when
小题7:
A.jumpedB.startedC.jumpingD.starting
小题8:
A.overB.throughC.afterD.against
小题9:
A.runing awayB.ran awayC.run awayD.to run away
小题10:
A.toB.forC.itsD.their
小题11:
A.BecauseB.ButC.ThusD.Although
小题12:
A.asB.veryC.soD.much
小题13:
A.freelyB.hardlyC.soonD.quickly
小题14:
A.aheadB.downC.thatD.them
小题15:
A.turnedB.walkedC.jumpedD.ran
小题16:
A.sayingB.saidC.shoutingD.shouted
小题17:
A.aB.anC.theirD.that
小题18:
A.pleasedB.excitedC.frightenedD.worried
小题19:
A.soB.whyC.whatD.how
小题20:
A.\B.theC.aD.an
问答题 简答题