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搜题
【单选题】
从受力情况看,吊钩钩身(弯曲部分)最合理的截面形状应为
A.
圆形
B.
梯形
C.
矩形
D.
倒工字形
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【单选题】静息电位产生的原理是
A.
钠离子内流
B.
钠离子外流
C.
钾离子内流
D.
钾离子外流
【简答题】试述静息电位产生的原理。
【单选题】静息电位产生的原理主要是
A.
钠离子外移
B.
钾离子外移
C.
钠离子内移
D.
钾离子内移
E.
钠离子和钾离子同时转移
【简答题】成功的内部营销可以确保企业所有层级的员工都 和 自己的工作,以 及各种 顾客需求的活动、过程,确保员工积极主动地以 的方式行事,从而保证企业 目标的实现。
【简答题】Imagine going to sleep then waking up speaking another language. It may sound impossible, but it's actually happened. The phenomenon(现象)of being able to suddenly speak another language is known as“Xen...
【单选题】1轧制线水平高度的调整是可以通过( )来调整的。
A.
压下螺丝
B.
活动垫板厚度
C.
轧辊直径
D.
平衡缸
【简答题】Stress is a very normal part of life. Most people feel stress at some time __ _11__ . It doesn't come from an itself, that is, from the things that are __12__ in our lives. It comes from the mea...
【简答题】听对话,回答问题。 1. What happened to Mela two years ago? A. He met Kam. B. He had an accident. C. He lost his best friend. 2. How old is Mela? A. He is 15 years old. B. He is 13 years old. C. He is 9 year...
【单选题】It happened ____ the Long March.
A.
during
B.
in
C.
at
D.
for
【判断题】防止静电产生的原理是抑制电荷的分离。
A.
正确
B.
错误
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