下列关于频数表的论述错误的是() A.编制频数表是对原始数据进行整理汇总的常用方法

题型:单项选择题 A1型题

问题:

下列关于频数表的论述错误的是()

A.编制频数表是对原始数据进行整理汇总的常用方法

B.频数表的主要用途是考察资料的频数分布类型

C.对100~400个原始数据,组段数一般取8~15个

D.常用极差除以组段数取整作为组距

E.各组距的组段一定要相等

考点:广西公共卫生住院医师规范化培训卫生统计学卫生统计学题库
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如果tanα-cosα<0,那么角α的终边在第______.

题型:单项选择题 A1型题

核素显像在诊断心血管系统疾病中有何价值?

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数据通信中,X.25网中一条永久虚电路一旦建立就永久占用一个逻辑信道号,直到被拆除。逻辑信道号可取1~()。

A、3095

B、4095

C、5095

D、6095

题型:单项选择题 A1型题

Beyond question, Clinton was supposed to close up, stay out of sight, and avoid second- guessing his wife’s boss. After his ego blustered into oncoming traffic during Hillary’s heated primary race (1) Obama, the nation suffered from yet another turn of Clinton fatigue.

(2) this week Bill Clinton showed an instinct for robust, inclusive leadership that the (3) White House occupant could make good use of right for the time being. With President Obama struggling to (4) the political damage from the Gulf oil spill, Clinton not only can’t help himself—he’s worth being listened.

The conventional-wisdom (5) on President Obama’s early reaction to the spill was (6) he didn’t emote enough. He didn’t feel the (7) of all those people in the crisis whose livelihood would be destroyed, whose clean waters and wildlife would be (8) in black gunk.

Clinton considers this is an unfair (9) but offers a different—and more pointed— lesson to his young successor. "I think we ought to (10) in the same boat for a while... Let’s just (11) the problem, and then we can hold everybody responsible and emote or not emote, " Clinton conversed (12) CNN Anchor Wolf Blitzer.

Obama’s first (13) after the oil spill was to "feel the blame" rather than "feel the pain, " which are pretty sarcastic words as it were. No one intends to let British Petroleum (BP) management (14) the hook—for dangerously cutting corners, and for a (15) safety record. However, the President’s (16) focus on scolding BP consumed (17) White House energy while the oil gushed.

Great leaders don’t rush to criticise; Instead they instinctively (18) solutions. Rudy Giuliani, who didn’t stop to blame (19) intelligence for letting it happen, stood out from New York mayor with a girlfriend problem to 9/11 hero when he took control of a crisis and instilled confidence that a ravaged city could (20) beyond a terrorist attack.

16()

A.important

B.special

C.initial

D.sharp

题型:单项选择题 A1型题

柳永对宋词发展最具贡献的方面之一是创作了大量的()

A.小令

B.慢词

C.豪放词

D.雅词

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