Most people work because it's unavoidable. , there are some people who actually enjoy work.
A:As a result
B:In addition
C:By contrast
D:In conclusion
小珍每天学习总是起早贪黑,勤奋学习,结果总是考不好,原因是( )
A、活性炭 B、酒精 C、熟石灰 D、聚乙烯塑料
E、钛合金 F、石墨 G、小苏打 H、一氧化碳