【单选题】The number 2548 is read as________________.
A.
two thousands and five hundreds and forty and eight.
B.
Two thousand, five hundred and forty-eight
C.
Two thousand, five hundreds, forty eight
D.
Five hundred and five hundred and forty-eight
【单选题】中国将继续发挥负责任大国作用,积极参与全球治理体系改革和建设,不断贡献( )和力量。
【简答题】什么是解链温度?影响DNA Tm值大小的因素有哪些?为什么?
【单选题】The number 2548 is read as ______________.
A.
two thousands and five hundreds and forty and eight
B.
two thousand, five hundred and forty-eight
C.
two thousand, five hundreds, forty-eight
D.
five hundred and five hundred and forty-eight
【简答题】根据49×52=2548填空. ______×______=2.548; ______×______=2.548; ______×______=2.548; ______×______=2.548.