种子萌发时,在利用光能之前,会发生的现象有
①细胞分化 ②细胞呼吸 ③有丝分裂 ④合成大分子化合物[ ]
A.①②③
B.①③④
C.②③④
D.①②③④
答案:D
阅读理解。
This is a picture of Tina's family. Tina is a student. She is in a red dress today. Her coat is blue. The
man in brown shirt is Tina's father,Mr Black. He's a policeman. The woman is Tina'smother, Mrs Black.
She is in a red hat. She is a nurse. The boy is Tina's brother, Jim. He is in black jacket and green trousers.
He is a student, too.
1. Tina's dress is____.[ ]
A.red
B.blue
C.brown
2. Tina's father is a____.[ ]
A. driver
B. worker
C. policeman
3. Tina is Jim's .[ ]
A. friend
B. brother
C. sister
4. What's Mrs Black's job?[ ]
A. Doctor.
B. Nurse.
C. Teacher.
5. Jim is in _____ jacket.[ ]
A. black
B. blue
C. green
关于慢性阻塞性肺疾病自然疗法,说法错误的是()
A.日光浴、冷水浴和户外运动锻炼都属于自然疗法
B.日光浴主要通过日光中的红外线和紫外线对机体产生有益的作用
C.日光浴时身体要尽可能裸露
D.冷水浴时为了尽快达到效果,应先从冬季擦浴开始
E.冷水浴的同时对洗浴部位进行按摩和搽揉,直到身体发红发热