中国是世界上最早发现和使用煤的国家。据考证,用煤冶铁最早是在()
A.春秋战国
B.汉代
C.唐代
D.北宋
参考答案:B
阅读理解。
I have seven baskets. Three are big. Four are small. I have some pears and some oranges. I put two
pears in each small basket, and I put two oranges in each big basket and one orange in each small basket.
The number of the oranges is my age.
1. I have _______ pears.
A. three
B. five
C. seven
D. eight
2. I have _______ oranges.
A. six
B. eight
C. ten
D. eleven
3. What are those in the four small baskets?
A. Nine pears.
B. Nine oranges.
C. Three pears and nine oranges.
D. Eight pears and four oranges.
4. Where are the pears?
A. Three big baskets.
B. Four small baskets.
C. A big basket.
D. A small basket.
5. Do you know how old I am? I'm _______.
A. twelve
B. ten
C. eleven
D. nine
在小学生一日生活常规中要求小学生一天学习时间不可超过()。
A.5个小时
B.6个小时
C.7个小时
D.8个小时