放大电路的电压放大倍数随负载而变化,负载越小,电压放大倍数越大。

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问题:

放大电路的电压放大倍数随负载而变化,负载越小,电压放大倍数越大。

考点:高职试题对口专业考试河南省2010年对口升学考试电子类基础课真题
题型:判断题

下列说法属于形而上学的是    (   )

①滴水穿石 ②物极必反 ③刻舟求剑 ④断章取义 ⑤墨守成规 ⑥不以规矩,不成方圆

A.①②③

B.④⑤⑥

C.③④⑤

D.②③⑤⑥

题型:判断题

癌性胸水具有下列哪些特点()。

A.比重小于1.018

B.蛋白含量小于3g/dl

C.细胞总数不超过100×106/L

D.LDH含量高于血清

E.胸水蛋白/血清蛋白<0.5

题型:判断题

Valentine’s Day was the time my father chose to show his love for the special people in his life. Over the years I fondly thought (31) him as my "Valentine man".

My first recollection of the magic he could bring to Valentine’s Day came when I was six. That morning at the breakfast table I found a card and a gift-wrapped package at my chair. The card was (32) "Love, Dad" and the gift was a ring with a small piece of red glass to represent my birthstone, a ruby.There is (33) difference between red glass and rubies to a child of six, and I remember wearing that ring with pride that all the cards in the world (34) not surpass.

As I grew older, the gifts gave (35) to heart-shaped boxes filled with my favorite chocolate and always included a (36) card signed "Love,Dad". In those years my thank-you became more of a perfunctory response. The cards seemed less (37) , and I took for granted that the Valentine would always be there. I had (38) my hopes and dreams in receiving cards and gifts from "significant others" and "Love, Dad" just didn’t seem quite enough.His final card remains on my desk today. It’s a (39) of how special fathers ean be and how important it has been to me over the years to know that I had a father who continued a tradition of love with simple acts of understanding and an ability to express happiness over the people in his life.Those things never (40) , nor does the memory of a man who never tried being my Valentine.

39()。

A. signal

B. eertificate

C. consequence

D. reminder

题型:判断题

N0.7信令中,业务信息八位位组(SIO)分为()和子业务字段SSF。

题型:判断题

在BTS30基站中,在副机柜上,因没有TMU单板,所以电源盒上其对应的电源开关可以关闭。

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