【单选题】The person who is interested in the position could ______.
A.
make an appointment by telephone
B.
come directly m the office
C.
come and pass the test
D.
have a big interview directly with the personnel manager
【单选题】参加健美锻炼的人,避免盲目。锻炼过程中,身体的适应与不适应,往往会出现信号。出现哪种症状我们必须调整训练方法
【简答题】生物学家做了下列实验:①用红色荧光染料标记人细胞膜上的蛋白质;②用绿色荧光染料标记鼠细胞膜上的蛋白质;③把人和鼠的细胞融合为一,此细胞一半发红荧光,另一半发绿荧光。然后,把此细胞放在37℃下培养40min,再检查发现两种颜色的荧光均匀分布在整个细胞表面,如图所示。根据上述实验现象回答下列问题。 (1)人和鼠的细胞能够融为一体,是因为其细胞膜的基本成分是____的。 (2)上述两类荧光染料最终均匀分...
【简答题】Who could make the arrangements?
【简答题】A.Robots that could talk. B.Human beings who spoke a different language but could make themselves understood. C.Human like creatures that could speak and make themselves understood. D.Human like creat...
【简答题】回答科学家对生物膜结构的探索历程。 (1)19世纪末,欧文顿发现凡是可以溶于脂质的物质,比不能溶于脂质的物质更容易通过细胞膜进入细胞,于是他提出:_____________。 (2)20世纪初,科学家第一次将膜从哺乳动物的红细胞中分离出来,化学分析表明,膜的主要成分是__________________。 (3)1925年,两位荷兰科学家用丙酮从人的红细胞中提取脂质,在空气一水界面上铺展成单分子层...
【单选题】It was dark, and we could not ______ who was coming along the avenue.
【单选题】The person who is interested in the position could ______.
A.
make an appointment by telephone
B.
come directly to the office
C.
come and pass the test
D.
have a big interview directly with the personnel manager