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【判断题】
第三代电子计算机主要元件为集成电路 。A.
正确
B.
错误
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【简答题】因为42+x=77，所以x=77+42．______．
【简答题】某种纸张的厚度为0.00873 cm，用科学记数法表示为（ ）cm。
【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...
【简答题】简述陈述性知识和程序性知识的区别。
【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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