问题
填空题
21的因数有( ),27的因数有( ),( )既是21的因数,又是27的因数。
答案
1、3、7、21;1、3、9、27;1、3
21的因数有( ),27的因数有( ),( )既是21的因数,又是27的因数。
1、3、7、21;1、3、9、27;1、3
从A、B、C中选择恰当的一项填入括号内,补全对话。 |
( ) 1.![]() | A. Hi, John. B. Hello. What's your name? C. See you, John. |
( ) 2.![]() | A. Hi, thank you. B. Good morning, Miss. C. OK. Great. |
( ) 3.![]() | A. Hello. Let's go to school. B. Nice to meet you. C. Good afternoon. |
( ) 4.![]() | A. Fine. This is Tom. B. Very well. Thank you. C. How are you, Mike? |
( ) 5.![]() | A. I like red. B. Me too. C. Good morning. |
( ) 6.![]() | A. Hi, Zoom. B. Hello, this is Zoom. C. I'm fine, thank you. |