问题
单项选择题
存在超负载(动力性负载),应采用()调速。
A.进油节流
B.回油节流
C.旁路节流
答案
参考答案:B
存在超负载(动力性负载),应采用()调速。
A.进油节流
B.回油节流
C.旁路节流
参考答案:B
Passage 3
How many minority communities are mentioned in this speech a. Three. b. Four. c. Five. d. Two.