在高倍镜下观察黑藻细胞质流动时,可看到 [ ]
A.细胞质沿细胞膜循环流动
B.细胞质围绕着叶绿体运动
C.细胞质围绕着线粒体运动
D.细胞质围绕着细胞核运动
答案:A
Student: I’m sorry I’m late. My bike was broken.
Teacher: ______ . It’s not the first time you have said this.
A.I don’t buy your story.
B.Never mind?
C.I don’t think you are right.
D.You don’t say.
简述第一代抗精神病药物的作用机制和临床应用。