(7,3)循环码的检验位有几位()A.1位 B.4位 C.3位 D.7位 发布时间:2017-10-25 05:48 │ 来源:www.tikuol.com 题型:单项选择题 问题: (7,3)循环码的检验位有几位()A.1位B.4位C.3位D.7位
题型:单项选择题 观察图中的四种自然景观。回答问题。女神司春 苍山云海 山水交映 珠帘挂川小题1:要取得四处景观的最佳观赏效果,应遵循的原则自左向右依次为 ( )A.选择特定地点、雨过天晴时、乘船、仰观B.远眺、仰观、低临水面、俯瞰C.选择特定地点、远眺、雨过天晴时、仰观D.仰观、远眺、乘船、选择特定地点小题2:形成左一地貌景观的外力作用主是 ( )A.侵蚀、沉积B.溶蚀、搬运C.搬运、沉积D.风化、侵蚀 查看答案
题型:单项选择题 完形填空 Tess went to her bedroom and pulled a glass jar from its hiding place. She poured all the coins out on the floor and counted it __1__. Then cautiously placing the __2__back in the jar, she made her way six blocks to the chemist's. She waited for the chemist to give her some __3__, but he was busy talking with a well-dressed gentleman at that moment.__4__she took a quarter from her jar and banged it on the glass counter. That did it! "And what do you want?" the chemist asked in an __5__tone of voice. He turned back__6__expecting a reply to his question. "I want to buy a __7__," Tess answered back to the chemist in the same annoyed tone. "My brother Andrew is really, really __8__. Daddy says only a miracle can save him. And I believe I can find it here. How much does it cost?" InstInstantly they __9__ talking. The well-dressed gentleman came up to Tess, and __10_ to ask how much money she had on her. "One dollar and eleven cents," Tess answered. "And it's all the money I have." "Well, what a coincidence(巧合). A dollar and eleven cents-the _11_ price of a miracle for your little brother," smiled the man. Actually, the gentleman was an expert surgeon in his field. He performed an _12_ on Andrew without charge and it wasn't long _13_ Andrew recovered. Mom and Dad were always _14_ how much the operation would have cost. Tess smiled. Only she knew exactly how much a miracle cost…one dollar and eleven cents…plus the _15_ of a little child.( )1. A. carefully( )2. A. currency ( )3. A. admission( )4. A. So ( )5. A. astonished( )6. A. by ( )7. A. pill ( )8. A. sick ( )9. A. started( )10. A. went down( )11. A. basic ( )12. A. action ( )13. A. after( )14. A. knowing( )15. A. faithB. contently B. cash B. attentionB. And B. appreciatedB. for B. miracle B. weak B. stopped B. broke down B. low B. experimentB. when B. wonderingB. chat C. carelessly C. change C. attractionC. But C. annoyed C. beyond C. medicine C. unhappy C. continued C. settled down C. exact C. operation C. until C. doubting C. fantasy D. considerately D. collection D. adjustment D. Or D. amused D. without D. drug D. naughty D. considered D. bent down D. average D. assignment D. before D. realizing D. curiosity 查看答案
题型:单项选择题 把一张半卷着的硬纸片摆放在桌子上,如果使劲吹一下它的下面,如图所示。则下列说法正确的是: [ ]A.纸片会翻转过来,因为下面的气流速度大压强大 B.纸片会翻转过来,因为下面的气流速度大压强小 C.纸片不会翻转过来,因为下面的气流速度大压强大D.纸片不会翻转过来,因为下面的气流速度大压强小 查看答案