資訊推薦

• 49.溶質粒子直徑在10-9~10-7公尺的溶液，為膠體溶液，如豆漿。在豆漿中加入下列何者會產生沉澱？(A)葡萄糖 (B)醋 (C)酒 (D)水
• 50.有關煤和石油的敘述，何者正確?(A)原油經活性炭過濾後所獲得之無色液體是汽油 (B)煤和石油的主要成分是烯系烴(C)煤經乾餾得到的揮發性氣體為乙炔 (D)家庭用的天然氣添加臭劑，確保使用安全
• 51.下列有關化石能源，何者敘述正確？(A)在冶煉工業中，煤焦為良好的還原劑 (B)煤乾餾後揮發性產物僅能當燃料使用，無其他用途(C)桶裝瓦斯主要的成分為甲烷及乙烷 (D)過去所使用的水煤氣主要成分為
• 52.已知SiO2 + 4HF→SiF4(g) + 2H2O，有一石英礦之試料重3克，與過量之氫氟酸反應並加熱，蒸發後重量變為1.8克，試求試料中石英之重量百分率為若干？ (Si=28、F=19、O=
• 53.下列畫線部分的元素，氧化數正確者為何者？(A) NaH +1 (B) H2O2 -1 (C) KMnO4 +6 (D) CH4 +4
• 54.下列關於碳與矽的敘述，何者正確？(A)基態碳原子的電子組態為1s22s22px2 (B)矽在週期表中屬於第15(ⅢA)族元素(C)高純度的矽加入少量硼，形成P-型半導體 (D)矽-矽間可以有參鍵
• 55.下列何者含有最多的氧原子？ (O=16)(A)3.2克的氧氣 (B)0.2莫耳氧原子 (C) 個臭氧分子 (D)18克水分子中
• 102.The idea _____ digital transformation is key to business success isn’t new, but the urgency surr
• 103.The new bus route will be being constructed next year, and it is _____ to significantly reduce t
• 104._____ the vendor's failure to deliver the goods on time, we had to cancel the order and fin
• 105.The airport's announcements are now clearer and more informative than _____ from a few year
• 106.In today's globalized economy, multinational corporations play a _____ role in driving inte
• 107.It's important to have a backup plan _____ your business idea doesn't take off, so hav
• 108.The premium lounge provides a more comfortable and exclusive experience _____ the standard waiti
• 109.Accurate tracking and management of inventory is critical for businesses, as it directly _____ t
• 110.The business world is heading in exciting new _____ as more companies recognize the importance o
• 111.Customer _____ provides an opportunity to find out what your clients want andneed from you, and
• 112.As an intern, I helped design promotional materials for the company's new product launch, _
• 113.The _____ event for the new skyscraper was a terrific success, with many industry leaders in att
• 114.Our restaurant is known for its unique fusion cuisine, and we're excited to bring these fla
• 115.The proposal _____ we streamline our manufacturing processes and implement lean principles has b
• 116._____ more great news for our sales and marketing departments, we just landed a new client with
• 117.According to the latest report, the company's workforce _____ significantly over the past y
• 118._____ the office cleaning services are performed regularly, the workspace can quickly become clu
• 119.One industry that has been greatly affected by globalization _____ tourism, with more people tra