【单选题】【消耗次数:1】
条码中对光线反射率较低的部分为()。
数据
以上均不对
参考答案:
复制
纠错
相关题目
【简答题】 条码是由一组_____、_____的条和空组成的标记
【多选题】 商品条码中的条码符号由( )等部分构成
①  起始符
②  终止符
③  数据符
④  校验符
【多选题】 商品条码中的条码符号由( )等部分构成。
①  起始符
②  终止符
③  数据符
④  校验符
【单选题】 瞳孔对光反射的中枢位于()
①  延髓
②  间脑
③  中脑
④  大脑
⑤  小脑
【单选题】 瞳孔对光反射的中枢在( )
①  下丘脑
②  中脑
③  延髓
④  大脑
【单选题】 参与瞳孔对光反射的结构是()
①  红核
②  黑质
③  顶盖前区
④  下丘
⑤  上丘
【判断题】 瞳孔对光反射的中枢在中脑。
①  正确
②  错误
【判断题】 幼儿园的墙壁宜刷成白色,家具及天花板宜为淡色,因颜色越深,光反射率越小。
①  正确
②  错误
【单选题】 双侧瞳孔散大伴对光反射消失见于
①  有机磷农药中毒
②  阿托品药物反应
③  毒蕈中毒
④  濒死中毒
【单选题】 一维条码按照应用可以分为商品条码和物流条码两种,下列不属于物流条码的是()。
①  EAN128码
②  PDF417码
③  39码
④  库德巴条码
随机题目
【单选题】 Outside my office window there is a fire _____on the right.
①  escape
②  ladder
③  steps
④  stairs
【单选题】 The fox fell into the _____the hunter had set for it.
①  bush
②  trap
③  trick
④  circle
【单选题】 You should know better than _____your little sister at home by herself.
①  to leave
②  leaving
③  to have left
④  left
【单选题】 The reason that his property was confiscated by the country, it _____, was that he was involved in a lot of fraudulent activities during the war.
①  was turned out
②  was being turned out
③  being turned out
④  turned out
【单选题】 By the end of next month we _____this assignment.
①  will finish
②  will be finishing
③  will have finished
④  have finished
【单选题】 Our teacher recommended that we _____as attentive as possible when we visit the museum.
①  are
②  shall be
③  be
④  were
【单选题】 _____native to North America, corn has now spread all over the world.
①  In spite of
②  That it is
③  It was
④  Although
【单选题】 Televisions enable us to see things happen almost at the exact moment _____.
①  which they are happening
②  they are happening
③  which they happen
④  they have happened
【单选题】 By the time you graduate, we _____in Australia for one year.
①  will be staying
②  will have stayed
③  would have stayed
④  have stayed
【单选题】 If you want children to work hard you must _____their interests instead of their sense of duty.
①  appeal to
②  look into
③  give rise to
④  go in for