【简答题】A.Only two years after his retirement. B.Only three years after his retirement. C.Only one year after his retirement. D.Only four years after his retirement.
【单选题】What happened in 1996?
A.
Retirement stopped being practiced.
B.
Age limitation in retirement was abolished.
C.
Retired people were no longer entitled to pensions.
D.
Age discrimination was legally abolished.
【简答题】A.only one year after his retirement. B.only two years after his retirement. C.only three years after his retirement. D.only four years after his retirement.
【单选题】升降压斩波电路呈现升压状态的条件为()。
【单选题】5升降压斩波电路呈现升压状态的条件为( )。
【单选题】The words in the following mean the same thing EXCEPT for
D.
Retirement communities.
【判断题】光源在测量中用于输出高稳定的光波,是光特性测试不可缺少的信号源。
【单选题】5升降压斩波电路呈现升压状态的条件为( )。