A customer, Jill, has a dim image on her internal LCD panel, but when connecting to an external display, the image is fine. Which of the following is MOST likely the cause?()
A、Inverter
B、LCD cable
C、LCD panel
D、System I/O
A、Inverter
B、LCD cable
C、LCD panel
D、System I/O
A、pKa-pH=log[A-]/[HA] B、pH-pKa=log[A-]/[HA] C、pKa-pH=log[A-][HA]/[HA] D、pKa-pH=log[HA]/[A-][HA]
A、Δhr与安装条件有关Δha与泵自身性能有关 B、Δhr取决外界条件,Δha取决泵本身因素 C、Δhr与泵制造工艺,材质等有关,而Δha与吸入条件及液体温度有关 D、两者所受影响相同,只是Δhr≥Δha
A、Run chkdsk. B、Run an antivirus program. C、Replace the faulty mouse. D、Remove any recently added hardware.
A、RNA由于分节段因而易于发生重组 B、HA、NA在包膜上易受化学因素的影响 C、HA、NA都是糖蛋白,化学性质不稳定 D、HA、NA和相应抗体结合导致变异 E、HA、NA抗原性容易发生变异