【单选题】电子点火系统中的电子点火器代替了传统点火系统中的哪个部件( )
【单选题】电子点火系统中的信号发生器代替了传统点火系统中的哪个部件( )
【多选题】双电控电磁阀与单电控电磁阀的区别在于,对于单电控电磁阀,在无电控信号时,阀芯在( )的作用下会被复位,而对于双电控电磁阀,在两端都无电控信号时,阀芯的位置是取决于( )。
【判断题】双电控电磁阀与单电控电磁阀的区别在于,对于单电控电磁阀,在无电控信号时,阀芯在弹簧力的作用下会被复位,而对于双电控电磁阀,在两端都无电控信号时,阀芯的位置是取决于前一个电控信号。
【判断题】双电控电磁阀与单电控电磁阀的区别在于,对于单电控电磁阀,在无电控信号时,阀芯在弹簧力的作用下会被复位,而对于双电控电磁阀,在两端都无电控信号时,阀芯的位置是取决于前一个电控信号动作的结果。
【判断题】双电控电磁阀与单电控电磁阀的区别在于,对于单电控电磁阀,在无电控信号时,阀芯不会被复位,而对于双电控电磁阀,在两端都无电控信号时,阀芯的位置是取决于前一个电控信号动作的结果。
【单选题】Equilibrium quantity must increase when demand
A.
increases and supply does not change, when demand does not change and supply increases, and when both demand and supply increase.
B.
increases and supply does not change, when demand does not change and supply increases, and when both demand and supply decrease.
C.
decreases and supply does not change, when demand does not change and supply decreases, and when both demand and supply increase.
D.
decreases and supply does not change, when demand does not change and supply decreases, and when both demand and supply decrease.
【判断题】双电控电磁阀与单电控电磁阀的区别在于,对于单电控电磁阀,在无电控信号时,阀芯在弹簧力的作用下会被复位,而对于双电控电磁阀,在两端都无电控信号时,阀芯的位置是取决于前一个电控信号动作的结果。
【单选题】When constructing a demand curve
A.
demand is on the vertical axis and quantity is on the horizontal axis.
B.
price is on the horizontal axis and quantity is on the vertical axis.
C.
price is on the vertical axis and demand is on the horizontal axis.
D.
price is on the vertical axis and quantity is on the horizontal axis.
【判断题】双电控电磁阀与单电控电磁阀的区别在于,对于单电控电磁阀,在无电控信号时,阀芯在弹簧力的作用下会被复位,而对于双电控电磁阀,在两端都无电控信号时,阀芯的位置是取决于前一个电控信号。