光电二极管在电路中是反向工作的。()

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问题:

光电二极管在电路中是反向工作的。()

考点:综采维修电工综采维修电工(综合练习)综采维修电工(综合练习)题库
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An Indian anthropologist, Chandra Thapar, made a study of foreign cultures, which had customs similar to (91) of his native land. One culture in (92) fascinated him because it reveres one animal (93) sacred, much as the people in India (94) the cow. The things he discovered might interest you (95) you will be studying India as part of this course.
The tribe Dr. Thapar (96) is called the Asu and is found on the American continent north of the Tamhumara of Mexico. Though it seems to be a (97) developed society of its type, it has an overwhelming (98) with the care and feeding of the rac—an animal much like a bull in size, strength and temperament. In the Asu tribe, it is almost a social (99) to own at least one (100) not more rats. People not possessing at least one are (101) in low esteem by the community because they are too poor to (102) one of these beasts properly. Some members of the tribe, to (103) their wealth and social prestige, even own (104) of racs.
(105) the rac breed is not very healthy and usually does not live more than five to seven years. Each family invests large (106) of money each year to keep its rac healthy and shod, for it has a tendency to throw its shoes often. There are rac (107) in each community, perhaps more than one if the community is particularly (108) . These specialists, however, due to the long period of ritual training they must undergo and (109) the difficulty of obtaining the right selection of charms to treat the rac, demand (110) offerings whenever a family must treat an ailing rac.

A.although

B.since

C.as if

D.when

题型:判断题

文章《范进中举》选自()

A、《聊斋志异》

B、《儒林外史》

C、《三国演义》

D、《世说新语》

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患者,男,56岁。左下后牙自发性搏动疼痛4天,口含冰块可暂时缓解。检查:左下7远中可探及龋洞,叩诊不适,探诊敏感,龈缘红肿,探诊出血;左下8近中低位阻生,远中龈瓣形成盲袋,龈瓣红肿,食物嵌塞。X线片显示左下7远中龋坏,左下8近中低位阻生,无明显龋坏。

主诉牙位及初步诊断为()

A.左下第二磨牙急性牙髓炎浆液期

B.左下第三磨牙急性冠周炎

C.左下第二磨牙急性根尖周脓肿

D.左下第二磨牙急性牙髓炎化脓期

E.左下第三磨牙急性牙髓炎化脓期

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YB45包装机运行中,商标纸横向输送模盒左、右探射光垒之一在设定有商标纸相位未检测到商标纸的存在则显示“()”故障。

A.盒片吸取失效

B.盒片吸取探测阻塞

C.盒片停吸失效

D.盒片钢印检测错误

题型:判断题

有学者指出:如果说文艺复兴为人本主义者们“清理了场地”,那么启蒙运动则是“大兴土木”。这里的“大兴土木”主要是指()

A.摧毁蒙昧和专制主义

B.建设工业文明国家

C.弘扬理性和科学思想

D.创立民主法治社会

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