判断题

答案：正确

你可能感兴趣的试题

检识苯醌类化合物可以采用活性次甲基显色反应
正确
错误

答案：正确

单项选择题

Why does the technology has become a competitive area？
A、change speeds
B、extend the driving range
C、the pressure of cut cost
D、increases power efficiency