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【简答题】

完形填空。 We are now living in the 21st century. Is your classroom living in the 21st centuiy, too? Tony is a student in Grade 8 at an American middle school. He was surprised when he saw his modern 1 on his first day of schobl. In Tony's classroom, there are many new electronics (电子设备) like iPads. This semester, they will 2 the electronics to take notes, watch videos and do projects and homework. "It's 3 "saidTony. "I prefer using an iPad to work on math or other projects 4 my team members." The school uses new technology (技术) in classrooms to help students see, hear, touch and sometimes experience their tasks, technology is pretty common in most of our classrooms now," the head teacher said. "We are trying to use technology to 5 the world to kids. It can bring the outside world in." Science teacher Mr Miller agrees. "It is a 6 way for students to know the outside world," he said. Mr Miller now regards himself as a guide of learning 7 as a teacher. "If they have a question for me, I will try to teach them 8 to find the answers rather than tell them what the answers are," he said. Dale, another student, loves technology. He was not really interested in class before, 9 now helikes the classes very much. "It helps me use what I know about technology at school," Dale said. "Most importantly, I 10 the classroom. This, of course, will help my studies." ( )1. A. dormitory ( )2. A. allow ( )3. A. boring ( )4. A. on ( )5. A. open up ( )6. A. wrong ( )7. A. because of ( )8. A. why ( )9. A. but ( )10. A. stand B. playgroundB. use B. relaxingB. by B. look upB. slow B. instead ofB. what B. and B. hate C. libraryC. want C. amazing C. at C. put up C. quick C. according toC. when C. or C. enjoy D. classroom D. help D. disappointing D. with D. call up D. bad D. thanks to D. how D. so D. dislike

题目标签:电子设备技术
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【单选题】常用的浓缩技术有()

A.
沉降和过滤
B.
过滤和离心分离
C.
常压干燥和减压干燥
D.
喷雾干燥和冷冻干燥
E.
蒸发和蒸馏

【单选题】应用较广泛的深度处理技术不包括______。

A.
活性炭吸附
B.
生物接触氧化
C.
生物活性炭
D.
臭氧氧化

【单选题】下列哪一生产技术或情况不是形成假迹象的来源?

A.
差的表面准备;
B.
压固的工件;
C.
对渗透剂不正确的冲洗;
D.
工件不正确的热处理;

【单选题】下列有关分离工艺机床使用技术安全操作规程的说法正确的是()

A.
操作前要做好一切劳动保护工作
B.
检查机床周围有无障碍物,要确保工作地整洁有序
C.
试车:在确认机床情况正常后才能启动运转,观察有无异常现象
D.
机床未在润滑良好的情况下也可操作