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【单选题】
People need exercise to stay healthy. Adults should exercise 20 minutes daily, but most people do not. Activities like swimming, lifting weights, and playing sports are often inconvenient or too expensive. The best exercise is walking because it is easy, convenient, and usually done outside. Please find out the background infromation of the introduction paragraph above.A.
The best exercise is walking because it is easy, convenient, and usually done outside.
B.
Adults should exercise 20 minutes daily, but most people do not. Activities like swimming, lifting weights, and playing sports are often inconvenient or too expensive.
C.
People need exercise to stay healthy.
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【单选题】细胞外铁(+++)，铁粒幼细胞占75%，其中环形铁粒幼细胞占20%，可能是
A.
缺铁性贫血
B.
铁粒幼细胞性贫血
C.
MDS-RA
D.
MDS-RAS
E.
MDS-RAEB
【单选题】中华民族伟大复兴需要以中华文化发展繁荣为条件,要推动中华优秀传统文化创造性转化、( )发展,不断增强中华文化的影响力和吸引力,创造文化新的辉煌。
A.
全面
B.
快速
C.
创新性
D.
跨越式
【多选题】使用调整图层的优点是（）。
A.
使用“调整面板”操作更容易
B.
单击调整图层随时可以撤销或者修改以前的操作，重新修改曲线或直方图
C.
单击就能访问自己对图像处理的预设
D.
可以使用图层混合模式
E.
没有确定按钮，各个调整图层都是活动的
F.
内置图层蒙版
【单选题】汉代时,有人送金子给太守杨震,说夜里没人知道这事,你就收了吧。杨震严词拒绝:这件事情天知地知我知你知,怎么是没人知道呢?“四知”论,就是给自己立起四面镜子,置身其中,不敢不“正衣冠”,不能不有所畏忌,不能不有所为有所不为,从而实现自我监督、自我修正、自我提升。这给我们的启示有1要把核心价值观转化为人们的情感认同和行为习惯2要推动中华优秀传统文化创造性转化、创新性发展3要把核心价值观内化为精神迫求,...
A.
①②
B.
①③
C.
②④
D.
③④
【简答题】The figure above are instances of two relations that might constitute part of a banking database.Indicate the following: The tuples of each relation.
【简答题】The figure above are instances of two relations that might constitute part of a banking database.Indicate the following: The tuples of each relation.
【简答题】The figure above are instances of two relations that might constitute part of a banking database.Indicate the following: The attributes of each relation.
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