【評論主題】【題組】48. Which statement is true?(A) With the advent of the Internet, writing has become a lost skill

【評論內容】(A) No it hasn't(B) ☆☆☆ ...

【評論主題】The Internet has produced a foaming Niagara of writing. Consider these current roughestimates: Each

【評論內容】

Text messages are terse, but globally they're our most frequent piece of writing: 12 billion per day.

【評論主題】10. 一質點以O為圓心在一水平面上作等速圓周運動，其速率為v，如圖所示。甲、乙、丙、丁、戊皆在圓周上，如果以丁點為參考點測量質點的角動量，則該質點角動量時間變化率的量值在圖中哪些點為零？ (A)甲、

【評論內容】

L = r cross mv

甲丁

【評論主題】5. Which pair of vectors is not always in parallel?(A) Velocity & linear momentum； (B) Angular v

【評論內容】(A) P = mv(B) L = r ........

【評論主題】2. Which is not correct to apply Newton's law?(A) All measurements should be madein an inertia

【評論內容】(A) correct(B) if it☆ ...