.________they were singing, the teacher came in.A. Before B. after C. As D. Until
During my high school years, the most important thing was what I was wearing to the Friday night dance and who I was taking．Although college was talked about, it was the least of my worries． W
一个细小物体若被显微镜放大50倍，这里“被放大50倍”指的是细小物体的 （ ） A.体积
阅读分析材料，回答下列问题． 20世纪90年代码来花卉消费的国际需求迅速增长，北美、日本、欧洲成为世界三大花卉消费市场。同期图４所示国家成所
“大抵徽商……其所积蓄，则十一在内，十九在外。”材料表明徽商（ ）A．注重扩大对外贸易 B．注重扩大商业资本C
--- his telephone number? ---It’s 3255876. A. Where’s B. What’s C. How’s
一根质量分布不均匀的金属拉链条重30 N，长1 m，盘曲在水平地面上，当从链条的A端慢慢提起链条到使它的另一端B恰好离开地面，需做功12 J，若改从B端
-- Shall I give you a ride since you live so far away? ----Thank you. ______. A. Of course you can B. It couldn’t be better C. If you
经线 D、
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