造成设备无形磨损的原因有（） A.通货膨胀导致货币贬值 B.自然力的作用使设备产
题型：多项选择题
问题：
造成设备无形磨损的原因有（）
A.通货膨胀导致货币贬值
B.自然力的作用使设备产生磨损
C.技术进步创造出效率更高、能耗更低的设备
D.设备使用过程中的磨损、变形
E.社会劳动生产率水平提高使同类设备的再生产价值降低
题型：多项选择题
书面表达。
Notes: ①percentage百分率 ②skill技能
1. The number of the students who took part in English competitions in _____ grew faster from
2008 to 2009.
A. School A
B. School B
C. neither school
2. In the English competition in _____, School B had 100 more students than School A.
A. 2007
B. 2008
C. 2009
3. According to the information above, these two schools had the same percentage of the students
who won prizes in _____.
A. listening
B. speaking
C. reading
4. _____ students in School A were given prizes for their speaking skill in 2009.
A. 100
B. 200
C. 300
5. Which of the following is TRUE from the information above?
A. The students from School A and School B won prizes in five skills.
B. The students from School B did worst in listening of all skills.
C. The students from School A need to improve their writing skill.