问题
解答题
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答案
| 33+77=110， | 195-85=110， | 0×88=0， |
| 25×4×8=800， | 120×3÷9=40， | 63÷7+91=100， |
| 72÷8×3=27， | 39-19+20=40， | 4×（35-10）=100． |
搜题请搜索小程序“爱下问搜题”
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| 33+77=110， | 195-85=110， | 0×88=0， |
| 25×4×8=800， | 120×3÷9=40， | 63÷7+91=100， |
| 72÷8×3=27， | 39-19+20=40， | 4×（35-10）=100． |
People talk with words. Do you think you can talk without words? A smile on your face __ that you are happy and friendly. Tears in your eyes tell __ that you are sad. When you __ your hand in class, the teacher knows you want to say __ or ask questions. You shake your head, and people know you are saying “ no”. You nod and people know you are saying __. Other things can also give some __. For example, a sign at the bus stop helps you to know which bus to take. A sign on the wall of your school helps you find the library. Signs on doors tell you __ to go. People talk to each other in many other __. An artist uses his pictures to tell about the blue sea, about beautiful mountains and many other things. __ write books to tell you about all wonderful things in the world and also about people and their ideas. They all help us to know __ is going on in the world.
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