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现有下列物质： ①铁锅 ②砂糖 ③食盐 ④小麦粉 ⑤植物油．其中富含油脂的是（填序号，下同）______，属于无机盐的是______，由金属材料制成的是______．
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【单选题】Questi ons I and 2 will be based on the following news item.
A.
It can dive to a depth of 100 meters
B.
It can receive a video signal
C.
It can control an operator remotely
D.
It can see what the operator sees through a virtual reality headset.
【简答题】Choose the best answer for each of the following multiple choice questi
【简答题】'Meeting People' Now listen to a short conversation between a student and his friend. Question Describe the man's problem, and the two suggestions that his friend makes about how to handle it. What do...
【单选题】江山易改、禀性难移说的是
A.
一个人的性格特点是难以改变的
B.
一个人的气质在一生中是比较稳定的
C.
环境改变了，人的气质也不会发生变化
D.
环境决定人的气质，也决定着一个人成就的高低
【单选题】?Read the following extract from an article about monopolistic competition, and the questions followed. ?For each question 15—20, mark one letter (A, B, C, or D) on your Answer Sheet for the answer yo...
A.
Some consumers who also estimate the value of the good at more than the marginal cost of production.
B.
Some consumers who estimate the price of the good at more than the marginal cost of the production.
C.
Some consumers who have a high opinion of the good at more than the marginal cost of the production.
D.
Some consumers who estimate the worth of the good at more than the marginal cost of the production.
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