太阳内部进行着大规模的______________,释放的核能以光的形式辐射出来,太空望远镜两边张开的“翅膀”就是______________电池板。
核反应(核裂变),太阳能
阅读短文,选择正确的答案。
I have a small family. There are only three people in my family. They are my parents and me. My father's
a driver. He likes painting. He has short hair and big eyes. My mother is a teacher. I am her student. She likes
music and sports. I have a happy family. I love my father and mother very much.
1. There are people in my family.[ ]
A. 2
B. 3
C. 4
2. My family members are my and me. [ ]
A. father
B. mother
C. father and mother
3. My father is a . [ ]
A. teacher
B. driver
C. cook
4. My mother likes . [ ]
A. music
B. painting
C. music and sports
5. I am a .[ ]
B. student
C. doctor
膀胱癌最常见和最早出现的症状是
A.尿路刺激征B.排尿困难C.尿失禁D.血尿E.尿潴留