A:图甲中的渗透作用发生需要两个条件:有半透膜c及a与b之间具有浓度差
B:图乙中液面不能一直上升的原因是半透膜两侧的溶液浓度相等
C:图丙中③④⑤组成原生质层
D:如果丙细胞没有细胞壁支持,置于清水中也会发生吸水涨破的现象
观察新航路开辟航线图,回答问题。
甲、乙、丙和丁四个图分别表示有关量的变化规律,下列描述中,正确的是( )
Hello! I'm Dolly. ①I work at a hospital. ②I'm a nurse. My house is not far from the hospital. ③So I walk to work.④And my brother is a teacher.⑤He goes to work by car.
①____ ②____ ③____
④____ ⑤____
A. How does he go to work?
B. Where do you work?
C. What does your brother do?
D. How do you go to work?
E. What do you do?