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【判断题】
遥感图像的空间分辨率决定了制图比例尺的大小。一般来说,遥感图像空间分辨率越高,图像可放大的倍数就越高,地图的比例尺就越大。A.
正确
B.
错误
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举一反三
【简答题】因为42+x=77，所以x=77+42．______．
【简答题】3. They ____ in my
math class.
【简答题】某种纸张的厚度为0.00873 cm，用科学记数法表示为（ ）cm。
【简答题】根据估算填． 81×30≈______×______=______； 42×29≈______×______=______．
【单选题】My students are all quiet.Even after class, my students spend ___as they can playing outside.
A.
as little time
B.
little time
C.
less time
D.
time as little
【简答题】阅读短文回答问题。 My name's Piko. Today is the School Sports Day in my school. Everyone in my class is very happy. I'm really excited. I love running. I can run fast. I join in the running race. I want to win...
【简答题】阅读理解。 What do you usually do after class? When class is over, most students in my class I go out to relax. We have a twenty-minute break (休息) between classes. Look! Some students are in the playground...
【单选题】在回归模型中,下列哪一项在权衡欠拟合(under-fitting)和过拟合(over-fitting)中影响最大?
A.
多项式阶数
B.
更新权重 w 时，使用的是矩阵求逆还是梯度下降
C.
使用常数项
【简答题】先估一估，再用竖式计算（加▲要验算）． 38×42≈ 63×57≈ 80×29≈ 38×42= ▲63×57= 80×29=
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