问题
单项选择题
甘薯、白菜堆放久了会发热的原因是（）
A.光合作用
B.呼吸作用
C.蒸腾作用
D.吸收作用
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
甘薯、白菜堆放久了会发热的原因是（）
A.光合作用
B.呼吸作用
C.蒸腾作用
D.吸收作用
参考答案：B
| 完形填空。 | |||
| My little sister is in Grade Eight this year. Her favorite subject is math, but she was not good 1 it. One day, a friend of my father's from America 2 her some pictures about America and 3 us to his home. My sister wanted to go to America very much, but my father said she must speak 4 very well. From then on, she 5 to work hard. She keeps 6 English for about half an hour every morning. In class she listens very carefully and 7 the teacher's questions as soon as possible. There is an American teacher in her school. After school, she often talks to her 8 English and asks her 9 help about English. Now She always says, "My ambition is to be a diplomat." I am 10 her dream will come true in the future. | |||
|