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关于劳动力的需求计划表的表格的形式，说法正确的是：()。
A. 国家及行业无统一限制，各企业可根据自身需要来制定
B. 按国家统一格式
C. 按行业统一格式
D. 既可按国家统一格式也可按行业统一格式
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A. difficult
B. easy
C. typical
D. unusual
（49）__________ 查看材料
Another distinction between science and technology has to do with the progress in each.
B. Unlike science， progress in technology must be measured in terms of the human factor.
C. What scientists discover may shock or anger people——as did Darwin"s theory of evolution.
D. Science and technology are different.
E. We are all familiar with the improper use of technology.
F. Science is a method of answering theoretical questions; technology is a method of solving practical problems.
热拌沥青混凝土路面属于()。
A. 高级路面
B. 次高级路面
C. 中级路面
D. 低级路面
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