题目内容
（请给出正确答案）
A、Diffusion current
B、Drift current
C、Leakage
D、N/A
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“Which type of current is dominant for a pn junction under reverse bias？”相关的问题
A、Le Père Marie-Joseph Lagrange.
B、Robert Morrison.
C、Evelyne Fallot.
D、Son nom n'est pas mentionné dans le texte.
A) if he didn't get a flat tire
B) if he had not had a flat tire
C) if the flat tire didn't happen
D) if the tire did not flatten
Still in the development phase, the rifle for 2006 has just been 【23】______ off with great 【24】______ by the Pentagon to members of Congress who will be asked to 【25】______ the money. The makers, Alliant Techsystems, say that the weapon will revolutionize 【26】______ combat much as the machine gun.
Pentagon jargon has given the new gun a(an) 【27】______ title: the Objective Individual Combat Weapon. 【28】______ one trigger, the rifle can fire a standard 5.56mm Nato bullet and a 20mm high explosive shell that will burst in the air. It can 【29】______ shrapnel behind, 【30】______ or even from the side of enemy troops who have taken 【31】______ behind a building. The shell can be 【32】______ to explode after a short delay. The weapon's 1,000 yard accuracy is twice 【33】______ of other rifles, made possible by a laser system built into the sight. This rangefinder fixes the target, measures the distance and passes it along to a computer chip in the shell.
The gunsight has an infrared lens for night 【34】______ . It can also have video camera with a zoom lens that is linked to a video display attached to the soldier's helmet, allowing him to aim 【35】______ without exposing himself to enemy return fire. But there are snags still be 【36】______ out. Two men were 【37】______ when a shell burst in a barrel during firing tests. The rifle weighs more than 18lb. There are questions whether its electronic innards will be rugged enough for rain, snow and difficult 【38】______ .
Michael Klare, a professor of peace and world security issues and a board member of the Arms Control Association, says that the Pentagon is seeking this combination of firepower and automation to compensate for the uncertain aim of GIs. He said: "Soldiers won't have to worry about careful steady aim. They'll just look 【39】______ the viewfinder and 【40】______ the trigger."
【21】
A．reality
B．affect
C．effect
D．operation
A. 需要为用户建立区别于3gnet等公网节点的用户自有节点。
B. 必须从用户设备至3G行业网关开通一条电路，才能实现APN。
C. 在APN开通流程中必须经过的区公司部门有：集团客户部、网管中心、产品创新部、信息化支撑中心。
D. 非标准行业应用资费，需要单独向集团总公司申请。
A、(a) current-controlled device（电流控制器件）
B、(b) voltage-controlled device（电压控制器件）
C、(c) other device（其他器件）
D、(d) none （什么都不是）
A、Ohmic contact
B、Schottky contact
C、Hetero contact
D、N/A
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