【单选题】以下关于单克隆抗体纯化、鉴定,说法错误的是
A.
常用纯化前预处理方法有二氧化硅吸附法和过滤离心法
【简答题】Z13-04-13 (1) 长直导线载有电流I, 矩形线圈与其共面,长L1,宽L2,长边与长导线平行,线圈共N匝, 线圈以速度v垂直长导线向右运动, 当AB边与导线相距x时,求线圈中感应电动势大小和方向;(2) 如果上题中线圈保持不变,而长直导线中通有交变电流 ,则线圈中感应电动势如何?
【单选题】Which of the following statement is NOT true about Toni Morrison?
A.
Besides novel, Morrison tried libretto and nonfiction.
B.
Even in her 80s, Morrison did not give up writing.
C.
In 2015, Morrison released the documentary Toni Morrison Remembers.
D.
In autumn 2016, Morriosn received the Pen/Saul Bellow Award for Achievement in American Fiction.
【单选题】Toni Morrison believes that(. )
A.
All white people will betray her
B.
All blacks people will betray her
C.
All black people will not betray her
D.
Some white people will not betray her
【单选题】The novel 'Beloved' of Toni Morrison is cited as an example to show that this book is______for children to read.
【简答题】Toni Morrison finds it necessary
【单选题】What is Toni Morrison famous for?
A.
She is famous for her narrative technique, sympathy and humanity
B.
She is famous for her portrayal of Americans caught between ethnicity and aspiration
C.
She is famous for her sense of humor
D.
She is known as a woman writer of great insight in intellectual life
【简答题】Z13-04-13 (本题10分) (1) 长直导线载有电流I, 矩形线圈与其共面,长L1,宽L2,长边与长导线平行,线圈共N匝, 线圈以速度v垂直长导线向右运动, 当AB边与导线相距x时,求线圈中感应电动势大小和方向;(2) 如果上题中线圈保持不变,而长直导线中通有交变电流 ,则线圈中感应电动势如何?
【多选题】Toni Morrison is the author of __________.
【单选题】设有说明 int (*ptr)[M]; 其中标识符 ptr 是()。
C.
一个指向具有 M 个整型元素的一维数组的指针
D.
具有 M 个指针元素的一维指针数组,每个元素都只能指向整型量