【单项选择题】
当阀门的Pg＝2.5MPa或是Pg＝4MPa为（）阀门。
A、A.真空
B、B.低压
C、C.中压
D、D.高压
查看正确答案A、低压 B、中压 C、高压 D、超高压
搜题
更多“当阀门的Pg＝2.5MPa或是Pg＝4MPa为（）阀门。”相关的问题
第9题
A、 PG-R3 will receive up to four queries for 192.168.1.0/24， one each from PG-R2， PG-R4， PGR5，and PG-R6. B、 PG-R3 will receive up eight queries for 192.168.1.0/24， one from PG-R2， two from PG-R4，three from PG-R5， and four from PG-R6. C、 PG-R3 will receive one query for 192.168.1.0/24， since the remote routers， PG-R4， PG-R5， and PG-R6， are natural stubs in EIGRP. D、 PG-R3 will not receive any queries from PG-R2， because there are no alternate paths for 192.168.1.0/24.
