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

想問問左邊那個算式為什麼不用再×2 （丙丁分到的組別也有兩組可以選） 第一個2是指甲乙的選擇

68.將甲、乙、丙、丁、戊、己、庚、辛等八人隨機地分成兩組,每組四人,求甲乙不同組而丙丁 同組的機率為35 Scic C&C 2: xxx (xx

請問第四題的D、第五題🙏🏻

40 波的頻率與折射波的頻率相同。 太陽表面在2017年9月接連發生一起被稱作「太陽閃焰」的大型爆發,規模為10年來最大。科學家預計爆發所噴出 的帶電粒子團兩天後抵達地球,撞擊大氣層後產生電磁波,以致影響通訊品質。已知太陽與地球距離約為1.5x1011 公 C尺,光速約為3.0x108公尺/秒。下列敘述哪些正確? 0 (A)電磁波並無繞射與干涉的現象(B)電磁波在空間傳播須以帶電粒子為介質 1.5×103 500 3x68 (C) 電磁波具有隨時間作週期性變動的電場與磁場D 帶電粒子團脫離太陽時的速率約為8.7×105 公尺 / 秒 (E)帶電粒子團撞擊地球大氣層之後約8分鐘,地球上才能觀測到太陽閃焰影像。 折射線 我們常在生活中聽到2.4G無線這樣的名詞,根據美國聯邦通訊委員會(Federal Communications Commission)所定義, 2.4G是指在ISM 頻段中,2.4~2.4835 GHz之間的頻率,完整名稱為 Industrial Scientific Medical Band,是預留給工業、 ·科學及醫療使用的免費頻率,沒有任何使用上的限制。依本文所言,下列敘述哪些正確?(光速c=3x108m/s) (A) 2.4G 中的最長波長約為12.5cm (B)頻率愈大者,其傳播速度愈快 (C)波長愈長者,其傳播速度愈快 (D)只能在地球上傳播(E)可以在太空中使用。 甘零件油左直空中的波長約為300奈米,下列有關此電磁波的敘述,哪些正確? 去完的頻率約為1015 赫茲

請問該題的B選項要從文章中何處推斷 ？

master's degree in horticulture in 1896. In the same year, he was invited to head the newly formed department of agriculture at the Tuskegee Institute in Alabama, where he spent the rest of his life. At Tuskegee he slowly built up a laboratory and researched ways to rebuild the exhausted land around the Institute. Carver found that soil which had apparently been ruined by over-cultivation of cotton and tobacco could be restored and that growing peanuts and sweet potatoes also improved the soil. In order to popularize these crops, he developed over 300 by-products, including cereals, oils, dyes, soaps, and new foods. At the same time, he conducted his remarkable school on wheels, a traveling classroom from which he taught Alabama farmers the basics of soil enrichment. When he died on June 5, 1943, he was one of America's most honored scientists, having brought prosperity to large areas of the impoverished South. 9 Which of the following is an accurate statement about Carver's childhood? (A) He was adopted by a man named Carver. (B) His parents died when he was still very young. He was born into a rich farming family in Missouri. D) Despite his youth, he fought to free slaves in the Civil War. 10871

求解第七題為何用ing

S B Cute animal; she's also a symbol of hope for her endangered species. 6. A. truthful C. forgetful # B7. to DA A. to splash C. splashing 8. A. Similar with C. Aside from C9. A. bring an end to C. make the most of 10. A. wildlife A₁ C. privacy B. adorable 可愛的 D. portable 輕便的 B. splashed D. has splashed B. Instead of D. Thanks to 避難所 B. seek refuge in D. reduce the need for I 閱讀能力測驗:閱讀理解 B. border D. consumer H 18

求解第七題為何用ing

S B Cute animal; she's also a symbol of hope for her endangered species. 6. A. truthful C. forgetful # B7. to DA A. to splash C. splashing 8. A. Similar with C. Aside from C9. A. bring an end to C. make the most of 10. A. wildlife A₁ C. privacy B. adorable 可愛的 D. portable 輕便的 B. splashed D. has splashed B. Instead of D. Thanks to 避難所 B. seek refuge in D. reduce the need for I 閱讀能力測驗:閱讀理解 B. border D. consumer H 18

請問螢光筆畫的那兩個是怎麼弄的

求A = (4,4,16)對平面:x+y+z=21的對稱點 (A) (-2,-2,-2) (B) (2,2,14) (C) (6,6,30) (D) (-6,-6,-18) TT 正確答案:(B) r M •A' Assume that A' is the symmetric point of A in the above diagram. First, we computer, which is the line that passes through A and is perpendicular to π: x 4 y 4 Z- - 16 r: = = 1 1 Then, solving the following three simultaneous equations from r and π : x y = 0, x z = −12, x + y + z = 21 we find the intersection point M of r and π M = (3,3,15) Since M is the midpoint of AA', we have A-M A' = M - A' = 2M - A =2(3,3,15)-(4,4,16) = (2,2,14).

這題怎麼算？

②期林版(113學年度)第四章直線與回 pdf-Adobe Acrobat Reader (32-bit) 樓案(F) 編輯(E) 檢視(V) 簽署(S) 視窗(W) 說明(H) 首頁 工具 翰林版(113學年度) × ☆ 39 164 該檔案號稱符合PDF/A標準,且以唯讀模式開啟,以避免到修改。 210x297公園 115% ↓ 利用二元一次聯立不等式也可以表示平面上的封閉區域,進而求出面積值。 例: 設a為一實數,已知在第一象限滿足不等式(2x-y2a *{x+y≤6° 的所有點所形成之區域面積 33 為 平方單位,則a=? 2 x] 思 P 人 VewScile 00:04.15 啟用編輯 登入 牌

第18題 題目說要放形容詞所以是closed 但close本身不是也是形容詞嗎？ 記得講義有以下句子 leave the door open

第16.至20.題為題組 The platypus is an egg-laying mammal endemic to Eastern Australia, 16. of Tasmania. 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. (D) inclusive (D) reverse 16. (A) includes (B) including (C) included 17. (A) inquire (B) detect (C) support BA 1 (A) close (B) closed a (C) closing (D) to close 19. (A) called on (B) revealed to (C) viewed as (D) resorted to 20. (A) While (B) Only if (C) Because (D) So long as 三、文意選填(占10分) 說明:第21.題至第30題,每題一個空格,請依文意在文章後所提供的(A)到(J)選項中分別選出 最適當者,填入空格中。每題1分。 第21.至30.題為題組 Trans fat is unsaturated fat which is altered by partial hydrogenation. The process of partial

為什麼第一小題不能有氖

NH, 和 BF(D) CO和NO 4.原子序依序遞增的部分前三週期族元素的原子半徑數據下表所示: 元素 A B D E F G M N P 原子半徑(nm) 0.077 0.075 0.074 0.071 0.186 0.160 0.143 0102 0.099 (1) 已知A、B、D、E、N、P為非金屬元素,且均不與F、G、M 中的任何一種元素同主族,在元素週期表中的相對位置如右。 A B D E 請將元素符號填在表中相應位置。 He BBCNOFNe SN NP pc (2)B 在元素週期表中的位置為第 週期第 族,G在元 Nang ACPSCIAr 素週期表中的位置為第 (3) FP為 週期第 族。 (離子或分子化合物,路易斯電子式為 化合物,路易斯電子式為 ; AD為 (離子或分子) 其個別 (4)M的氧化物溶於水的產物為胃藥的主要成分,可以治療胃酸過多,治療胃酸時發生反應的離 子反應式為 。