评价印刷质量的好坏首先要看对()的忠实性。
A、图文载体
B、信息转移
C、原稿
参考答案:C
液控单向阀按()的泄油方式不同,有内泄和外泄之分。
A、压力
B、主阀芯
C、控制活塞
根据汉语填写句中所缺单词。
1. ______ (检查) your homework carefully before you hand it in .
2. My parents are both ______ (普通的) teachers They work hard.
3. There are many shops ______ (沿着) the street .
4. Lucy is careless. She made a lot of ______ (错误) in the exam.
5. What a ______ (特别的) present! I'm so excited.