[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习化学(人教版A)答案
[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习化学(人教版A)答案于2025-12-27发布，目前已经汇总了[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习化学(人教版A)答案的各科答案和试卷，更多试卷答案请关注本网站。
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[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习政治(人教版A)试题
[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习化学(人教版A)试题
NEVER STOP WALKING
When Justin was 7, he suffered from a disease that led to problems with the development of his back. Over the years, the little boy had gone through a total of five corrective surgeries. Justin could no longer walk and was limited to a wheelchair. But this did not stop him from living a normal life thanks to his mother’ S love and others’ help.
After entering high school, Justin got interested in playing the trumpet (小号) and joined the school’s band. He served as one of the band’s trumpeters and developed a strong friendship with his partner Tom. As Thanksgiving Day approached, the band intended to perform in the Thanksgiving Day Parade and every member had the chance to join in, including Justin. However, there was one obvious problem. Justin could not control his wheelchair and play the trumpet at the same time. The band director put forward an idea of one student pushing Justin during his marches. Tom immediately volunteered even though it meant he had to give up the opportunity to play his own instrument during the parade.“I do it just to make sure Justin knows that he always has a place in the band, and he always will,“ Tom said to their director secretly. From then on, the two practiced together, one playing the instrument and the other pushing the wheelchair with the rhythm of the music.
To help Justin, Tom sacrificed (牺牲) far beyond expectation. Apart from losing the chance to perform, he needed to spare more time to take care of Justin and even missed his football training several times. All of these were seen by Justin and the burden of guilt weighed heavily on his mind.“I can’t meet my own needs at the sacrifice of Tom’s chance. It is time to find a solution.” Justin thought to himself as his mother pushed him on the way home. His mother lowered her head and said,“Justin, play me your new tune.” Justin took out his trumpet and was about to play when an excellent idea came to him.
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2、[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习政治(人教版A)答案
4、[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习政治(人教版A)答案
6、[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习 (人教版A)答案
6、[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习生物(人教版A)试题
2、[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习化学(人教版A)答案
D.若S发射波长为600 nm的单色光,光屏上N处将出现第2条亮条纹
6.(2025·广西柳州模拟)光导管作为一种高效的光传输装置,在现代科技和生活中发挥着重要作用。如图所示,一单色光在截面中心线位置以与水平中心线成45°角的方向进入光导管,恰好在MN表面发生全反射。已知光导管长度为L,光在真空中的传播速度为c,下列说法正确的是( )
A.单色光的折射角的正弦值为
B.光导管对该单色光的折射率为
C.光在光导管中的传播速度为c
D.光在光导管中的传播时间为
7.为了装点夜景,常在喷水池水下安装彩灯。如图甲所示,水下有一点光源S,同时发出两种不同颜色的a光和b光,在水面上形成了一个有光射出的圆形区域,俯视如图乙所示,环状区域只有b光,中间小圆为复色光,下列说法正确的是( )
[学林教育]陕西省2025~2026学年度九年级第一学期第二阶段巩固练习生物(人教版A)答案
