题目:
把一个圆平均分成4份,每份是它的______分之______,写作
|
答案:
把一个圆平均分成4份,每份是它的四分之一,写作
;其中的3份是3个1 4
,就是它的四分之三,写作1 4
.3 4
把一个圆平均分成4份,每份是它的______分之______,写作
|
把一个圆平均分成4份,每份是它的四分之一,写作
;其中的3份是3个1 4
,就是它的四分之三,写作1 4
.3 4
硫代硫酸钠可用于治疗
A.氰化物中毒
B.砷中毒
C.吗啡中毒
D.汞中毒
E.铅中毒
心内膜弹力纤维增生症X线改变有()
A.左心室明显肥大
B.右心室明显肥大
C.左心缘搏动减弱
D.肺纹理减少
E.肺纹理增多
去甲肾上腺素、多巴胺、山莨菪碱为扩血管抗休克药。
阅读理解。
We now think of chocolate as sweet, but once it was bitter. We think of it-as a candy, but once it was
a medicine. Today, chocolate can be a hot drink, a frozen dessert, or just a snack. Sometimes it is an
ingredient in the main course of a meal. Mexicans make a hot chocolate sauce called mole and pour it over
chicken. The Mexicans also eat chocolate with spices like chili peppers.
Chocolate is a product of the tropical cacao tree. The beans taste so bitter that even the monkeys say
"Ugh!" and run away. Workers must first dry and then roast the beans. This removes the bitter taste.
The word "chocolate" comes from a Mayan word. The Mayas were an ancient people who once lived
in Mexico. They valued the cacao tree. Some used the beans for money, while others crushed them to make
a drink.
When the Spaniards came to Mexico in the sixteenth century, they started drinking cacao too. Because
the drink was strong and bitter, they thought it was a medicine. No one had the idea of adding sugar. The
Spaniards took some beans back to Europe and opened cafes. Wealthy people drank cacao and said it was
good for the digestion.
In the 1800s, the owner of a chocolate factory in England discovered that sugar removed the bitter taste
of cacao. It quickly became a cheap and popular drink. Soon afterwards, a factory made the first solid block
of sweetened chocolate. Later on, another factory mixed milk and chocolate together. People liked the taste
of milk chocolate even better.
Besides the chocolate candy bar, one of the most popular American snacks is the chocolate chip cookie.
Favorite desserts are chocolate cream pie and of course an ice cream sundae with hot fudge sauce.
1. It was ____ that discovered sugar could remove the bitter taste of cacao.
A. the workers in the chocolate factory
B. the Spaniards
C. the people in England
D. the owner of a chocolate factory
2. According to the passage which of the following statements is TRUE?
A. Nobody had the idea of adding sugar into cacao until the sixteenth century.
B. The word "chocolate" comes from a Mexican word.
C. The beans taste so bitter that even the monkeys like them.
D. Workers must dry and roast the beans to remove the bitter taste.
3. The Spaniards think that cacao was a medicine because ____.
A. it was strong and bitter
B. it was good for digestion
C. it cured man' s diseases
D. it was a kind of drink for good health
4. Which is the right time order of the events regarding chocolate?
a. Chocolate became a cheap and popular drink in England.
b. A factory made the first solid block of sweetened chocolate.
c. The Spaniards started drinking cacao.
d. It was found that sugar removed the bitter taste of cacao. e. A factory mixed milk and chocolate
together.
A. a-b-c-d-e
B. c-d-e-b-a
C. c-d-a-b-e
D. c-d-b-e-a
5. It can be learned from the passage that ____.
A. chocolate can be a hot drink, a frozen dessert, or a candy bar
B. the Mayas only used cacao beans for drinking in Mexico
C. chocolate is a product of the cacao tree
D. people liked more the taste of solid blocks of sweetened chocolate than that of chocolate mixed with milk
线路两旁和站台上堆放货物有何规定?