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【題組】⑵實驗中為何需要加入 0.1 M KCl?(5 分)
問題詳情
【題組】
⑵實驗中為何需要加入 0.1 M KCl?(5 分)
參考答案
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五、有一純音音源(pure tone sound source),其聲波在自由音場中以球狀均勻地向各方傳播,如果在距音源 10m 處聲音壓力位準(sound pressure level)為 74dB
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59.已知在 100 克水中溶有 5.0 克非揮發性之某物質。將此溶液在 1 大氣壓下,測得溶液之沸點為 100.52℃,則該非揮發性物質之分子量為若干?(已知水的 )(A) 240 (B) 180
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7. I found some _____ ways to use up left over potatoes.(A). invention (B). inventive (C).invents(D)
二、如圖一所示,一穩定的喷射水流自一直徑為12 mm的水平水管中喷出,衝上一塊重 量為12 N的均質方塊(寬、高、長分別為30 mm、160 mm、200 mm),水流的衝 擊點位在長度方向的中線上。
8. Linda is very _____ when it comes to the food she eats.(A). choosy (B). choice (C). chose (D). ch
9. After a meal is over, the waiter serves _____.(A). dessert (B).poison (C).the appetizer (D). a di
10. If a dish is grilled, it is _____.(A). an appetizer (B). native to the country(C). cooked over a
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11 Acountry cannot have a native _____.(A). population (B). food (C). plant (D). ocean
2. Which sentence does not support the topic sentence Different countries enjoy different delicacies
12. That restaurant _____ in fresh fish.(A). specialty (B). special (C). specializes (D). specializa
3. Which sentence is not a fact?(A). Rice rats are eaten in China.(B). Fish shops in England and Fra
13. We use the word _____ to describe children who have a lot of energy.(A). alive (B). lively (C).
4. Asking questions using when, how, and why will help you find ____.(A). a concluding sentence (B).
14. A lack of rain _____ the potato crop.(A). dangerous (B). dangerously (C). endangered (D). danger
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三 綜合測驗 24% A new United Nations report says that we (1) ____ all eat insects. The report is from the
【題組】11.(A) based (B) cased (C) laced (D) faced
【題組】2. (A) calls (B) called (C) calling (D) call
【題組】12.(A) stroke (B) feel (C) touch (D) pet