【单选题】革兰氏染色时最好选择处于( )的微生物细胞进行染色
【单选题】革兰氏染色时最好选择处于( )的微生物细胞进行染色
【单选题】This text indicates that the basic component of scientific research is ______.
【判断题】p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px SimSun; color: #000000} 革兰氏染色时最好选择处于稳定期的微生物细胞进行染色
【单选题】The author implies that ______.
A.
it is sometimes easier to detect supernovas by observation of the X-ray spectrum than by observation of visible wavelengths of light
B.
life on the earth is endangered by its constant exposure to radiation forces that are released by a supernova
C.
recently discovered meteorites indicate that the earth and other planets of our solar system survived the explosion of a supernova several billion years ago
D.
lighter elements are formed from heavier elements during a supernova as the heavier elements are torn apart
【单选题】3D 打印机的应用,使得印刷技术再一次向前跨出了先进的一步,这一应用主要归功于第( )次信息技术革命的浪潮。
【判断题】革兰氏染色时最好选择处于稳定期的微生物细胞进行染色
【单选题】在计算机中1MB的含义是()。
E.
字节(Byte)是电脑存储容量的基本计量单位。1024KB=1M(兆)B,字节(Byte)简写为B