【单选题】虽然顾客满意是一件好事,但质量经济性的决定因素是( )。
【判断题】高速离心机的转头不能超过其额定转速使用。()
【判断题】高速离心机的转头不能超过其额定转速使用。
【单选题】关于核酸的生物合成的叙述,错误的是 [ ]
【单选题】What do we learn about the book?
A.
It guides you to tackle present issues.
B.
It helps you to foresee the furture.
C.
It teaches you the art of leadership.
D.
It intends to arouse your passion.
【单选题】What do we learn about the woman?
A.
She is good at finding beauty in daily life.
B.
She has many friends in the fashion industry.
C.
She was interested in fashion from an early age.
D.
She won a fashion competition while at school.
【简答题】DNA复制时,合成DNA新链之前必须先合成______,它在原核生物中的长度大约有______。
【单选题】十六进制数(4F)16 对应的十进制数是 。