皮皮学,免费搜题
登录
搜题
【判断题】
只有直接耦合的放大电路中三极管的参数才随温度而变化,电容耦合的放大电路中三极管的参数不随温度而变化,因此只有直接耦合放大电路存在零点漂移。
A.
正确
B.
错误
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】Whatever your reason, I shall ____ my idea that people should be allowed to have private lives.
A.
hold on to
B.
cut back on
C.
resolve to
D.
sum up
【多选题】下列关于影子规律的描述正确的是:
A.
影子的数量与光源的个数有关。一个光源一个影子,二个光源两个影子 ……
B.
点状光源,影子大小与光源距离有关,距离越近,影子越大;
C.
影子若投射到墙面上,影子的高低与光源高度有关。光源低影子高,反之则低;
D.
影子可以表现时间。早晨的阳光照射到的物体的影子长;上午下午的影子居中;中午影子最短;
【单选题】When you decide that you would not work with the company for whatever reason, you are expected to ________ inform the company and ________ present your appreciation for the offer when ________ declini...
A.
promptly, candidly, explicitly
B.
hesitantly, candidly, implicitly
C.
unnecessarily, ambiguously, bluntly
D.
sluggishly, candidly, crudely
【单选题】Directions: For each question, there are four choices marked A, B, C, and D. You should choose the best answer.Passage2 Time spent in a bookshop can be most enjoyable, whether you are a book-lover or...
A.
The Attraction of Bookshops
B.
How To Spend Your Time
C.
Bookshops and Their Assistants
D.
Buying Books
E.
Selling Books
F.
How To Save Your Time
【多选题】下列关于vr太阳光的描述正确的是 。
A.
颜色是由浊度值的高低来控制的.浊度越低.太阳光就越偏向冷色调.反之则偏向暖色调
B.
混浊度指空气中的清洁度数值越大阳光就越暖.一般情况下.白天正午的时候 数值为3到5
C.
强度倍增器---光的强度,0.015左右就行
D.
阴影细分---越大越影子柔和
【简答题】Time spent in a bookshop can be most enjoyable, whether you are a book lover or onlythere to buy a book as a present. You may even have entered the shop just tofind shelter from a sudden shower. Whate...
【多选题】下列对于光影的描述,正确的是?
A.
用光造影,以影造型。
B.
在天幕、景片上投射的影像,可称为光影。
C.
用灯光营造的人物剪影的效果,属于光影。
D.
用成像灯、电脑灯投射到舞台上的光斑图案,属于光影。
E.
现代演出使用的视频影像,也可称之为光影。
【简答题】1) Hold fast to our dreams, for if dreams die, life is a broken-winged bird that cannot fly. 2) Whatever your reason for not wanting to cry is, holding back tears is often difficult. A. to keep believ...
【简答题】If you don’t breastfeed, for whatever reason, then your baby will need ___1__.
【简答题】B 6.2.3 Listen to some extracts from the dialogue and complete the following sentences with the missing words and phrases. *. Interviewer : Yeah. So, in your view what is it that good friends do for e...
相关题目: