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根据我国宪法规定,国务院、国务院各部委有权制定行政法规。

A. 对
B. 错

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Bombing shakes the peace process in Northern Ireland. A home video camera got the scene, moments after the worst single attack in thirty years of conflict(冲突)in Northern Ireland. Hundreds of people were affected by the bombing, some lying in the streets, others clearly in a state of shock. 28 people died in this cruel attack, 220 more injured. Some people got away with wound, many others had [heir arms and legs removed ensuring they’ll live with the memory of this bombing for the rest of their lives. The people behind this car bomb obviously wanted to kill as many as people as possible. "Why in the name of killing innocent Saturday shoppers" What purpose is it going to serve.’ This vicious(恶毒的)attack threatens the fragile peace process."The peace process is not necessary. We ought to save the lives of the people. That’s what are needed to do." But the biggest supporter of peace for Northern Ireland, says now is the time to send a message to the terrorists(恐怖分子)behind the attack.Tony Blair: "That these people will not win; that they will not destroy the process that we have built up; that they will not succeed in returning Northern Ireland to the past. There is a future for Northern Ireland. We have to carry on, trying to give people and the children of Northern Ireland the future they need and they deserve.\ The bombing happened()

A. on Saturday when there were many people in the park
B. outside a shopping center on Saturday
C. in a car factory
D. in a big square where there were many people

Carolyn had nine children, They wanted cookies. She decided to bake all those children some cookies. They were too noisy and maybe cookies would keep them quiet. She looked for her recipe book everywhere. She looked in the kitchen, in the bathroom, and in the den. It was not there. She thought for a minute and decided she might remember the recipe. She sifted 8 cups of flour, measured 5 cups of sugar, broke 7 eggs, and 9 teaspoons of vanilla. She mixed them all together in a bowl and made round cookies. She placed them on a cookie sheet. The oven was turned to 450 degrees. The children were running around everywhere wanting the cookies to get ready. The cookies began to smell. The oven door began to creep open. Carolyn heard strange noises coming from the oven. ZZZZZZZZZrppppppp! Pop! Bing! ZZZZZZZZZrppppppp! The oven door popped all the way open and cookie dough went on the ceiling, on the floor, on the counter, and on Carolyn. It was a big mess! Carolyn decided she must have used the wrong ingredients for the cookies! What were the nine children doing while Carolyn was baking cookies()

A. They were sleeping.
B. They were running around.
C. They were coloring pictures.

Carolyn had nine children, They wanted cookies. She decided to bake all those children some cookies. They were too noisy and maybe cookies would keep them quiet. She looked for her recipe book everywhere. She looked in the kitchen, in the bathroom, and in the den. It was not there. She thought for a minute and decided she might remember the recipe. She sifted 8 cups of flour, measured 5 cups of sugar, broke 7 eggs, and 9 teaspoons of vanilla. She mixed them all together in a bowl and made round cookies. She placed them on a cookie sheet. The oven was turned to 450 degrees. The children were running around everywhere wanting the cookies to get ready. The cookies began to smell. The oven door began to creep open. Carolyn heard strange noises coming from the oven. ZZZZZZZZZrppppppp! Pop! Bing! ZZZZZZZZZrppppppp! The oven door popped all the way open and cookie dough went on the ceiling, on the floor, on the counter, and on Carolyn. It was a big mess! Carolyn decided she must have used the wrong ingredients for the cookies! Why did Carolyn try to remember the recipe()

A. She lost the recipe book.
B. She left it outside.
C. The children stole the book.

用样本均数估计总体均数时,考虑到存在抽样误差,故常采用区间估计。关于总体均数的95%的可信区间的叙述正确的是

A. 99%的可信区间比95%的可信区间更好
B. 在可信度确定后;可信区间长度就确定了
C. 对小样本资料,95%可信区间的计算公式为:X±t0.05,(n-1)5/√n
D. 对小样本资料,95%可信区间的计算公式为:X±1.96s/√n
E. 对任何样本资料,95%可信区间的计算公式均为:X±t0.05,(n-1)s/√n

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