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【单选题】
生物质能是直接或间接地来源于植物的光和作用把 转化为化学能蕴藏在生物质中的一种能量形式。A.
太阳能
B.
风能
C.
地热能
D.
海洋能
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【简答题】听短文，回答问题. 1. What is David?. A. He’s a car driver. B. He’s a nurse. C. He’s a doctor. 2. How many days a week does David go to work? A. Four days. B. Five days. C. Six days. 3. What time must David ge...
【简答题】单词拼写 1. I was___(震惊) when I heard about your accident. 2 . Teamwork is required in order to achieve these ___(目标) . 3 . His____ (抱负) is to become a great scientist in the future. 4 . The doctor told h...
【单选题】Choose the most appropriate answer in each situation. Situation 1 A foreign visitor expresses his gratitude to your boss by saying “Thank you so much for all you have done for me in the past few days....
A.
“It is our duty to help you.”
B.
“It is our pleasure.”
【简答题】用下列词填空:which, as, when, who, whom, where, when, why, that. 1.This is the very house _____ he lived. 2.In Xi’an, I met a teacher, ____ has a strong love for cultural relics and took me to visit the his...
【单选题】下列与持有存货成本有关的各成本计算中,不正确的是( )。
A.
取得成本=购置成本
B.
储备存货的总成本=取得成本+储存成本+缺货成本
C.
订货成本=订货固定成本+订货变动成本
D.
储存成本=固定储存成本+变动储存成本
【单选题】NaCl是溶于水的,然而,当将浓HCl加到NaCl饱和溶液中时,NaCl晶体就沉淀出来,这是因为 ( )
A.
HCl是强酸,任何强酸都导致沉淀;
B.
酸的存在降低了
C.
共同离子 使平衡移动,生成NaCl晶体
D.
不受酸的影响,但增加 能使它减小
【简答题】C. Past Mistakes: — Me, officer ? (1)____ ! — Come off it, Mulligan. For a start, you spent three days watching the house. You shouldn’t (2)____ that, you know. The neighbors got suspicious (3)____...
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