设一个圆锥与一个圆柱的底面半径及高都对应相等,它们的侧面积分别为S1,S2,则必

题型:选择题

问题:

设一个圆锥与一个圆柱的底面半径及高都对应相等,它们的侧面积分别为S1,S2,则必有(    )

A.S1<S2

B.S1=S2

C.S1>S2

D.以上情况均有可能

考点:柱体、椎体、台体的表面积与体积球的表面积与体积组合体的表面积与体积
题型:选择题

Millions of Americans and foreigners see GI.Joe as a mindless war toy, the symbol of American military adventurism, but that’ s not how it used to be. To the men and women who (1) in World War I1 and the people they liberated, the GI. was the (2) man grown into hero, the pool farm kid torn away from his home, the guy who (3) all the burdens of battle, who slept in cold foxholes, who went without the (4) of 1hod and shelter, who stuck it out and drove back the Nazi reign of murder. This was not a vohmteer soldier, not someone well paid, (5) an average guy, up (6) the best trained, best equipped, fiercest, most brutal enemies seen in centuries.

His name is not much. GI. is just a military abbreviation (7) Govermnent Issue, and it was on all of the article (8) to soldiers. And Joe A common name for a guy who never (9) it to the top. Joe Blow, Joe Magrae... a working class name.The United States has (10) had a president or vieepresident or secretary of state Joe.

GI. Joe had a (11) career fighting Geman, Japanese, and Korean troops. He appears as a character, or a (12) of American personalities, in the 1945 movie The Story of GL Joe, based on the last days of war correspondent Ernie Pyle. Some of the soldiers Pyle (13) portrayde themselves in the fihn. Pyle was famous for covering the (14) side of the warl, writing about the dirt-snow-and-mud soldiers, not how many miles were (15) or what towns were captured or liberated. His reports (16) the "willie" cartoons of famed Stars and Stripes artist Bill Maulden. Both men (17) the dirt and exhaustion of war, the (18) of civilization that the soldiers shared with each other and the civilians: coffee, tobacco, whiskey, shelter, sleep. (19) Egypt, France, and a dozen more countries, G. I. Joe was any American soldier, (20) the most important person in their lives.

(17)()

A.neglected

B.avoided

C.emphasized

D.admired

题型:选择题

可用来制铅笔芯的是    [ ]

A.铅

B.金刚石     

C.石灰石      

D.石墨

题型:选择题

男,15岁。左膝内下方可扪及一硬性肿块,轻度压痛;X线片示病损自干骺端突出的骨性突起,较触之略小。其诊断最大的可能是()

A.骨肉瘤

B.内生软骨瘤

C.骨瘤

D.骨软骨瘤

E.骨巨细胞瘤

题型:选择题

主要保护工业产权的国际公约是( )。

A.《巴黎公约》

B.《伯尔尼公约》

C.《泛美公约》

D.《与贸易有关的知识产权协议》

题型:选择题

责任原因编码由4位数字分两段组成,两位为一段,两段无隶属关系。

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