用戶【chi】點評問題和點評內容

【評論主題】12、已知五個連續的正整數之總和為135,則此五數中最大者為多少?(A)35 (B)39 (C)25 (D)29

【評論內容】

設五個連續整數分別為x-2、x-1、x、x+1、x+2

題目說五個連續整數的總和為135,

故可以列出以下算式:

(x-2)+(x-1)+(x)+(x+1)+(x+2)=135

整理可得:5x=135,x=27

求此五數最大者為x+2,代入可得最大數為29

【評論主題】題組26.~29.           David is a junior high school student. ___26.___ And he ___27.___ does his homew

【評論內容】表格第二列為"be late for s☆☆☆☆☆",...

【評論主題】15.A:How often do you wash your dog? B:______ a week. I wash it every Saturday.(A) One (B) First (C)

【評論內容】A:你多久洗一次狗?B:每個禮........

【評論主題】15.解3x-23=9-x,則x=(A)16(B)-7(C) (D) 8

【評論內容】

3x-23=9-x

4☆=32

☆=...

【評論主題】16.解3x-〔3-(x-2)〕=35,則x=(A)5(B)10(C)20 (D)30

【評論內容】3x-[3-(x-2)]=353x-(3-☆+2........

【評論主題】【題組】34. A(n)________can “bark”.(A) cat(B) elephant(C) dog (D) fish

【評論內容】在文中第12~13行寫道Bark?Why ☆☆ ☆☆☆ ...

【評論主題】【題組】32. What’s wrong with Lisa?(A) She has a sore throat.(B) She can’t bark.(C) She worries about he

【評論內容】在文中第8行寫道Lisa is very ☆☆☆☆. ...

【評論主題】【題組】41. Which is NOT one of them? (A)Carrying things to shoppers’ cars. (B)Keeping the store clean. 

【評論內容】"them" 指的是店員需要工.....★★★★★★...

【評論主題】15. A: Can you help me fix the computer? How come it suddenly can’t work?B: I don’t know why, either

【評論內容】A:你可以幫我修電腦嗎?不知道為什麼它突...

【評論主題】15.A:How often do you wash your dog? B:______ a week. I wash it every Saturday.(A) One (B) First (C)

【評論內容】A:你多久洗一次狗?B:每個禮........

【評論主題】16.解3x-〔3-(x-2)〕=35,則x=(A)5(B)10(C)20 (D)30

【評論內容】3x-[3-(x-2)]=353x-(3-☆+2........

【評論主題】15.解3x-23=9-x,則x=(A)16(B)-7(C) (D) 8

【評論內容】

3x-23=9-x

4x=32

x=8

【評論主題】【題組】34. A(n)________can “bark”.(A) cat(B) elephant(C) dog (D) fish

【評論內容】在文中第12~13行寫道Bark?Why ☆☆ ☆☆☆ ...

【評論主題】【題組】32. What’s wrong with Lisa?(A) She has a sore throat.(B) She can’t bark.(C) She worries about he

【評論內容】在文中第8行寫道Lisa is very ☆☆☆☆. ...

【評論主題】【題組】41. Which is NOT one of them? (A)Carrying things to shoppers’ cars. (B)Keeping the store clean. 

【評論內容】"them" 指的是店員需要工.....★★★★★★...

【評論主題】15. A: Can you help me fix the computer? How come it suddenly can’t work?B: I don’t know why, either

【評論內容】A:你可以幫我修電腦嗎?不知道為什麼它突...