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【单选题】
十进制小数转换为二进制数一般采用( )
A.
乘 2 取
B.
乘 2 取整法
C.
乘 10 取
D.
乘 10 取整 法
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参考答案:
举一反三
【单选题】下列化合物中,酸性最强的是;
A.
α-羟基蒽醌
B.
1,5-二羟基蒽醌
C.
2,6-二羟基蒽醌
D.
β-羟基蒽醌
E.
1,2-二羟基蒽醌
【简答题】Complete the following sentences with the words from Task 1. Change the word forms if necessary. 1. His father is able to ________ the family back to many centuries ago. 2. The prisoner was questi...
【单选题】若Cf,Co,Cw分别为岩石,地层油,地层水的压缩系数,则三者关系为
A.
Cf>Co>Cw
B.
Co>Cw>Cf
C.
Cw>Cf>Co
D.
Co>Cf>Cw
【单选题】程序流程图中表示分支的图形是( )。
A.
圆角矩形
B.
菱形
C.
平行四边形
D.
矩形
【简答题】His father is able to ________ the family back to many centuries ago. 2. The prisoner was questioned before his ________. 3. The health problems ___________ with obesity are numerous. 4. She ...
【单选题】下列化合物中,酸性最强的是
A.
α-羟基蒽醌
B.
1,5-二羟基蒽醌
C.
2,6-二羟基蒽醌
D.
α-羟基蒽
E.
1,2-二羟基蒽醌
【单选题】程序流程图中表示判断的图形是()
A.
正方形
B.
矩形
C.
平行四边形
D.
菱形
【单选题】羟基蒽醌中,酸性最强的是:
A.
1-羟基蒽醌
B.
2-羟基蒽醌
C.
1,2-二羟基蒽醌
D.
3,6-二羟基蒽醌
【简答题】C Having a meal is an easy and delightful process for most people. However, for a woodpecker( 啄木鸟 ) , it's not that . To get dinner, a woodpecker has to hit its head against a tree numerous tim...
【单选题】程序流程图中表示分支的图形是
A.
矩形
B.
平行四边形
C.
圆角矩形
D.
菱形
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