請問第5題C選項為什麼可以選？

B 6. 如圖,某人以F=50 牛頓之力,將一木箱持續推了4公尺的距 離,則此人作了多少功? (A)200焦耳 (B)2002焦耳 (C)100 焦耳 (D)100~2焦耳 (E)50 焦耳。 7 雋旂自然 Vexilla Science 答案:(D) 施一水平力於物體,使其沿一粗糙的斜面等速度上滑,則下列哪些力對物體作負功? A. (A)重力 (B)水平推力 (C)斜面的作用力 (D)動摩擦力 (E)物體所受的淨力。力 7 一甜相机 20 牛頓,且與水平成0=60°,求; 457 (1)合力對木塊所作之總功為13030焦耳。 (①) 對方神所作之功為1 6030】 焦耳。 & FT 4公尺 答案:(A)(C)(D) 質量為2公斤的物體靜置於光滑水平面上,對該物體施 10 牛頓的水平拉力,則持續施o F=M. G 力4秒鐘後此力對物體作多少功? 10 25 ZO W=F-S 14 (A)450 (B)400 (C)60 (D)10焦耳。 答案:(B) 木塊質量m=4.00 公斤,以繩在水平地上等速拖行d=3公尺,繩所施之力量值不變 20 z

為什麼恰有一交點就會變成畫線的地方

|2.若x+(2k+1)x+(k-3)=0有兩實根,恰有一根在-4與-1之間,則實數k 的範 圍為 2k7 EXE-4<x<1 。 47-1 令f(x)=X+ok+DX+K-3 (4)=16 -40k+1)+(-3)=744 (X+D(X+4) = X+5X+4 +(-1)=1-(2k+1)+(K-324-3 2K+1=5ak=2² -4小有一贴 K-304-2-21 則4(4)+(D20D,即FHk+)(k-D20 (K-CK+kO.. -3KKK木

請問第7題應該選什麼？

signifies the birth of a free and independent nation. is the Taj Mahal*, which was built in Another famous landmark on the other side of the ____(5) 1653. This (6) Indian structure is a popular destination* for travelers. Over seven million people _(7)___ around the world visit it every single year. ___(8)__ it's so well known, not many visitors are aware of the sad story behind it. four centuries ago. Emperor Shah Jahan had a beautiful white marble The story dates back to ____(9)_ building built in memory of his third wife, Mumtaz, who had died while giving birth to their 14th child. heart but also for his endless devotion* The building was named the Taj Mahal and also known as the "Crown of Palaces," where Mumtaz was _(10) laid to rest. To this day, it stands not just for a husband's to his wife. It is a symbol of everlasting love for many people. destination 3. commemorate Taj Mahal devotion (1)) famous so a (B) famous such a (C) such a famous D) so a famous (1) (2)(A) that (B) what (C) which (D) where (3)(A) into (4)(A) thus (B) from (C) among (D) for (B) yet (C) again (D) instead (5)(A) freedom (B) slave (C) monument (D) globe (C) ancient (D) scientific ) (6)(A) plastic (B) nutritious (D) with ) (7)(A) on (B) from (C) to 17) (8)(A) As soon as (B) Not until ) (9)(A) due to (B) according to (C) Only when (D) Even though (C) close to (D) in addition to (10) (A) to break (B) broke (C) breaking (D) broken Just as the Statue of Liberty is recognized as a symbol of freedom, so is Eugène Delacroix's painting Pading the People, a representation of liberty. Liberty Leading the People has three features in eated -甜相机

為何這一題23要使用被動式？？

Questions 21-25 There are many kinds of insects. All insects have three body parts, six legs, and three or four life stages. Some insects have one or two (21 spiders are different 22 of wings. However, insects. Spiders have two body parts, eight legs, and three life stages. Many scientists indicate that spiders have been very helpful to human beings. This is because most of spiders' life catching and eating 23 insects. This keeps the insects from eating up the plants we depend on. It is said that each year the number of insects killed (24) spiders in England is equal in weight to that of the nation's human population. It seems that we should stop killing spiders them. and begin to (25 A e ER 被动 21 A. pairs B. pieces C. groups D. parts 22 A. in B. by C. from D. as 23 A. has spent B. spent was spent D. is spending D 全民英檢初級模擬試題 第四回 Listening Comprehension Test B 24 A. with B. under C. about D. by 25 A. kill B. save C. reduce D. control Reading

想問這題的文法為什麼是選B (眼睛閉起來應該不算被動吧）

第10至20.起為起租 They -952 16. of Tasmania. The platypus is an egg-laying mammal endemic to Eastern Australia, It has brown fur all over its body and a wide, flat tail like a beaver's. The platypus' nose looks like a duck's bill, but its nose can 17. many things that other animals' noses cannot. With electroreception, the platypus can feel the power of other animals and keep its eyes 18. while swimming and hunting, using only its hearing and touch. Owing to its unusual appearance, the platypus was mistakenly 19. a fake by the first European scientists in the late eighteenth century, who encountered it for the first time and thought it was made of several animals sewn together. Furthermore, platypuses are difficult to see in the wild since they don't like areas with people. 20. the number of platypuses is declining, they are not under any immediate threat. 16. (A) includes B 17. Ainquire 18. (A) close C19. (A) called on A 20. (A) While (B) including (B) detect (B) closed (B) revealed to (B) Only if (C) included (C) support (C) closing (C) viewed as (C) Because (D) inclusive (D) reverse (D) to close (D) resorted to (D) So long as

請問為什麼不能選B

anywhere. Reg. diffusers CB 5. The farmer added the wals amounts of fertilizer according to the instructions on the package to chrich the soil. sedT US srl mi bloz gnied mont alastot to mounted on (A) thorough tanom (B) nutritiousitoito(C) appropriate cow br(D) informative assd 6. Jenny already completed her math homework, and she has finished her science 20insqr project as well. od nietsubong niedt grillez moit esinsqmos ses ned lliw wel won aidT 2007 (A) miserably (B) consequently Dodd Cintimately

問問這題為什麼選B

(A)擺錘 (B)電子鋰 (C)石丹理 D把原于理 精熟思考題 ') 1. 巴黎科學院(Paris Academy of Sciences)於1791 年制定一公尺 為:「北極經巴黎再到赤道之距離的一千萬分之一」,如右圖中 的虛線所標示。假設地球為球形,圓周率為元,則根據上述巴黎 科學院對於公尺的定義,下列哪一個選項可以推論出地球半徑約 為多少公里? (A) 2元×109 (BV2×10^÷元 (C)4元×10° (D) 10°÷(2) 2. 如右圖,天平保持水平靜止,指針在「O」刻度線上,若取下 赤道 北極 巴黎

15.answer is A 不太清楚他表達的意思

AR (A) adhered to (B) addicted to (C) accorded to (D) adjacent to (E) anxious to Scientists have shown that hunger isn't just something 15. during a ripple effect that we are only just beginning to understand. (B) transcendent (C) translucent (D) tranquil Short (A) transient Hunger peaceful (E) transit childhood can have

想請教這題，像不是左右顛倒，上下相反嗎？他的提示看不太懂...

Playsical Science Ke 有一物體放在凸透鏡 2F 上,則成像方向何者正確? (A) R Q FR 物體 P Q F (B) ANDER F 成像 Q (C) 請 ※題示:後面出發的光線,絕對不會因為折射而 超越前面先走的光線。 R. 。 (D) F ti

請問不是吸越多氣體，吐出的氣體比例也越高？？這樣的話該怎麼解這一題？謝謝

48. 发 小郭取甲、乙兩個相同的氣球,先用打氣筒將空氣灌入甲氣 球中,再深吸一口氣後,將乙氣球吹脹,如圖(四)所示。若兩 氣球中氣體的體積相同,則關於甲、乙兩氣球中各種氣體含 量的比較,下列何者正確? 選項 氧氣含量 (A) 甲>乙 (B) 甲>乙 甲乙 甲乙 (C) (D) 心。 Kevin Science 二氧化碳含量 甲乙 甲>乙 甲乙 甲>乙 甲 用打氣筒 灌入空氣 乙 用力吸氣後 吹入氣體 圖(四)