logo - 刷刷题
下载APP
【单选题】

一个α-螺旋片段含有180个氨基酸残基,该片段中有_____圈螺旋?

A.
50
B.
30
C.
40
D.
60
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】下面哪个代码片段是错误的?( )

A.
package mypackage; public class Rectangel {//doing something...}
B.
import java.io.*; package mypackage; public class Rectangel {//doing something...
C.
import java.io.*; class Circle{//doing something} public class Rectangel {//doing something ...}
D.
import java.awt.*; import java.io.*;package mypackage; public class Rectangel {// doing something...}