【简答题】考虑屈曲后强度的梁与不考虑屈曲后强度的梁相比,其腹板的抗剪承载力。
【单选题】What do we learn about the international scientists'research?
A.
They kept detailed records of all the elephants.
B.
They compared zoo-born elephants with wild ones.
C.
They explain clearly why wild elephants are healthier.
D.
They focus on female elephants captured in the wild.
【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】—Which province is the ________ one in winter? —It should be Hainan Province, I think. A.coldest B.hotter C.warmest D.cooler
【单选题】关于核酸的生物合成的叙述,错误的是 [ ]
【判断题】专家测试是将原型呈现给相关领域的专家,由他们给出专业性的反馈意见。
【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的生物合成有两种方式,它们是以DNA为模板的DNA生物合成和__________。