皮皮学，免费搜题
登录
搜题
【单选题】
关于激光打印机的工作原理，下列错误的说法是()。A.
曝光光源是激光束，其特征是高能量混合光，瞬间曝光
B.
激光束通过发散透镜透射到在X轴方向转动的多角光镜或电流计镜时，产生反射
C.
反射后的激光束再通过聚焦透镜系统，按“行式打印”在胶片上
D.
同时胶片在高精度电机带动下精确地在Y轴方向上均匀地移动
E.
激光束的强度由调节器控制，而调节器接受数字信号的控制
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】—The patient looks much better.________ is it that has made him ________ he is today? —Perhaps the special medicine and his family's patient care.
A.
What；that
B.
That；that
C.
What；what
D.
What；which
【单选题】I think ______ time with friends is better than ______ time alone. [ ]
A.
spending, to spend
B.
to spend, to spend
C.
spend, spending
【判断题】It is better to spend time with friends who are considerate, reliable, and supportive of your goals.
A.
正确
B.
错误
【单选题】It's raining outside. You'd better____ a raincoat with you.
A.
bring
B.
take
C.
carry
D.
get
【单选题】The more you practise ______ English, the better your _____ English will be.
A.
to speak, speaking
B.
speaking, spoken
C.
spoken, spoken
D.
spoken, speaking
相关题目：
参考解析：
知识点：
题目纠错 0
发布
