数据在计算机内部传送、处理和存储时，采用的数制是______。A) _爱下问搜题

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问题单项选择题

数据在计算机内部传送、处理和存储时，采用的数制是______。

A) 十进制
B) 二进制
C) 八进制
D) 十六进制

答案

参考答案：B

解析：计算机内部采用二进制进行数据交换和处理。

补全对话，情景问答

给下列的问句选择合适的答语。

( ) 1. What's that?
( ) 2. Who's that woman?
( ) 3. How are you?
( ) 4. How old are you?
( ) 5. Where are you from?
( ) 6. How many monkeys can you see?
( ) 7. Can I have some ice-cream?
( ) 8. How many pencils do you have?
( ) 9. What's your mother?
( ) 10. How do you do?

A. I have thirteen pencils.
B. That's a pen.
C. I'm from China.
D. How do you do?
E. She is a teacher.
F. I'm fine.
G. She is my mother.
H. I'm eleven.
I. I can see twenty-two monkeys.
J. Sure.

选择题

20mL 0.5mol/L的盐酸与一块大理石反应，下列措施不能提高反应速率的是

A．加入10mL 1mol/L的盐酸

B．加入30mL 10mol/L的盐酸

C．所用的大理石研磨成粉末

D．加入10mLH₂O