【单选题】What does the passage say about the oral tradition in Chicano culture?
B.
It is no longer relevant.
C.
It is being replaced by the written word.
D.
It is primarily rural.
【判断题】一个复数与它的共轭复数之和为该复数的实部
【判断题】It is very hard to cure depression.
【判断题】苹果、梨、番茄、杏的果实均属于真果。( )
【单选题】We spoke in whispers ______ waking the baby.
【单选题】下列型号的低压电器元件中,属于低压配电电器的是( )。
【单选题】由于财务杠杆的作用,当息税前利润下降时,普通股每股净收益下降得更快。( )
【简答题】苹果、梨等果实成熟时,RNA含量明显下降。( )