In
the semiconductor, the mobility ( ) with the increase of doping
concentration.
A: decreases
B: increase
C: remain
unchanged
the semiconductor, the mobility ( ) with the increase of doping
concentration.
A: decreases
B: increase
C: remain
unchanged
举一反三
- According to the Mundell-Fleming model， import restrictions in an economy with flexible exchange rates cause net exports to ______ and in an economy with fixed exchange rates import restrictions cause net exports to ____.（ ） A: remain unchanged; increase B: remain unchanged; remain unchanged C: increase; remain unchanged D: increase; increase
- A tariff is imposed on a good. This will ________ the domestic producer surplus, ________ the domestic consumer surplus, and ________ total surplus in the home country. A: increase; decrease; decrease B: increase; decrease; increase C: increase; remain unchanged; increase D: increase; increase; increase
- G-P(Gummel-Poon)<br/>model is used in uniform doping concentration in the base. (<br/>)
- Which<br/>one of the following is consistent with a government’s policy<br/>objective to expand the level of economic activity?() A: An<br/>increase in taxation B: An<br/>increase in interest rates C: An<br/>increase in personal savings D: An<br/>increase in public expenditure
- The<br/>response is to increase ______ ______ to the area and increase body<br/>heat.