According to the article, paper materials that are difficult to recycle include ______.
A. copy paper
B. document shred
C. food wrappers
D. bottles and cans
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As we are running out of time, I urge that everyone team up and get the project finished no ______ than Friday.
A. (A) lateness
B. (B) late
C. (C) lately
D. (D) later
根据关系数据库规范化理论，关系数据库的关系要满足1NF。有关系模式：部门(部门号，部门名，部门成员，部门经理)，哪个属性使它不满者1NF
A. 部门号
B. 部门名
C. 部门成员
D. 部门经理
Because the war between the two countries shows no sign of ending, oil has ______ in price over the last five months.
A. (A) arisen
B. (B) raised
C. (C) risen
D. (D) aroused
It can be learned from the passage that ______.
A. the existence of the symphony was attributed to the spread of Near Eastern and Chinese music
B. Near Eastern music had an influence on the development of the instruments in the symphony orchestra
C. the development of the symphony shows the mutual influence of Eastern and Western music I
D. the musical instruments in the symphony orchestra were developed on the basis of Near Eastern music
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