想問這題～ 答案是B （這句翻譯成中文是什麼意思🥲 查了但看不太懂

BAR. The new medicine that just came out on the market (A) and saved (B) has saved (C) saving thousands of lives. (D) to save

求解謝謝

( ) 9. When I'm in trouble, Meg is always the first person that I'm really lucky to have her in my life. (A) takes (C) saves (B) lends (D) prepares me a helping hand.

Grant argues that people should act like scientists, experimenting, considering all possible explanations and questioning earlier beliefs... 繼續閱讀

想問問，20題為什麼不是A for加一段時間不是完成式嗎？🤔

D b 18. Business at Jane's shop has not been good these days/And the new supermarket across the street only makes things worse. (A) easier (B) worse 使現況更糟 Qm more boring (D) more convenient pulled him out of a car on fire. (C) the one she (D) the one who 19. Scott wasn't sure if the young woman before him was 20. I (A) who (B) the one swimming for several years before I went to this high school I gave it up because of heavy schoolwork. (A) have practiced (B) am practicing (C) practiced 21. Frank Kane is so good in the movie that many people 22. (A) expect (B) forget (D) would practice he will win the best actor prize (C) notice (D) plan thousands of lives. (C) saving (D) to save The new medicine that just came out on the market (A) and saved (B) has saved

二下段考題目求解謝謝🪿

二下段考題目求解謝謝🪿

求解

(C) are asobra (D) ) 20. Mr. and Mrs. Lin are walking dogs. Are the dogs (A) theirs (B) their ided (C) themselves (D) them 19 (Wal (8) 190 (日) odle 'now D ? asid

求解

B 6. Anita enjoys watching the waves break against the rocks, and so BB 918 2 I. (A) do (B) am (C) will (D) have 1295 ever been to South Korea, and his children.

求解

DB 16 (C) yourself (D) yourselves 16. Jessie went to church every Sunday when she lived in the USA, but her husband (A) always did (C) did always (B) did never (D) never did 26 975

剛開始學隱函數，想問框起來的部分是用什麼rule呢？課程裡面是說用chain rule，但我看不太懂是怎麼寫成那樣的

Example 1: Let x² + y² = 25, , find dy == dx , dx dy and the equation of the tangent at (3, 4). Solution: 2x+2y 33 dy dx = 0 dx 2x dy |+ 2y = 0 X dy m = dx dy dx\(3,4) 3 -¾³½⇒(y−4) = −²/√(x − 3). =- 4 dx dy X