下列说法正确的是[] A.根据反应SiO2+2CSi +2CO↑,说明碳的非金属

题型:选择题

问题:

下列说法正确的是[     ]

A.根据反应SiO2+2CSi +2CO↑,说明碳的非金属性强于硅的非金属性

B.同周期从左至右,元素形成的氢化物的沸点逐渐升 高

C.化合物中显+4价的元素一定是第ⅣA族元素

D.离子化合物NaN3和Na3N中所含的化学键类型不同

考点:元素周期律元素周期表
题型:选择题
直接写出得数
0.28+7.2=
1÷0.1=3-
5
6
=
4.5m-3.2m=
题型:选择题

阅读理解

      Most people know that Marie Curie was the first woman to win the Nobel Prize, and the first

person to win it twice. However, few people know that she was also the mother of a Nobel Prize

winner.

     Born in September, 1897, Irene Curie was the first of the Curies' two daughters. Along with nine

other children whose parents were also famous scholars, Irene studied in their own school, and her

mother was one of the teachers. She finished her high school education at the College of S?vign? in

Paris.

     Irene entered the University of Paris in 1914 to prepare for a degree in mathematics and physics.

When World War I began, Irene went to help her mother, who was using X-ray facilities (设备) to

help save the lives of wounded soldiers. Irene continued the work by developing X-ray facilities in

military hospitals in France and Belgium. Her services were recognised in the form of a Military's

Medal by the French government.  

     In 1918, Irene became her mother's assistant at the Curie Institute. In December 1924, Frederic

Joliot joined the Institute, and Irene taught him the techniques required for his work. They soon fell in

 love and were married in 1926. Their daughter Helene was born in 1927 and their son Pierre five

years later.

     Like her mother, Irene combined family and career. Like her mother, Irene was awarded a Nobel

Prize, along with her husband, in 1935. Unfortunately, also like her mother, she developed leukemia

because of her work with radioactivity(辐射能). Irene Joliot-Curie died from leukemia on March 17,

1956.(www.yygrammar.com)  

1. Why was Irene Curie awarded a Military Medal?

A. Because she received a degree in mathematics.

B. Because she contributed to saving the wounded.

C. Because she won the Nobel Prize with Frederic.

D. Because she worked as a helper to her mother.

2 . Where did Irene Curie meet her husband Frederic Joliot?

A. At the Curie Institute.                

B. At the Universityof Paris.

C. At a military hospital.                

D. At the Collegeof S ?vign ?.

3. When was the second child of Irene Curie and Frederic Joliot born?

A. In 1932.                              

B. In 1927.  

C. In 1897.                              

D. In 1926.

4. In which of the following aspects was Irene Curie different from her mother?

A. Irene worked with radioactivity.

B. Irene combined family and career.

C. Irene won the Nobel Prize once  

D. Irene died from leukemia.

题型:选择题

粪便呈果酱色,镜检见成堆的红细胞,少量白细胞,应注意找

A.蛲虫卵

B.巨噬细胞

C.痢疾阿米巴滋养体

D.脂肪颗粒

E.肠道上皮细胞

题型:选择题

聚酰胺色谱柱对下列中哪类成分的吸附性强, * * 不可逆

A.黄酮类
B.酚类
C.醌类
D.鞣质
E.糖类

题型:选择题

社会体育产业经营与开发活动及过程有哪些?

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