皮皮学，免费搜题
登录
搜题
【多选题】
Which of the following statements about the male reproductive system are correct?A.
In males, the main organs of the reproductive system are the epididymis, prostate gland, seminal vesicles, vas deferens, penis, testes and scrotum.
B.
The penis and scrotum are the male external genitalia.
C.
The seminal vesicles and prostate gland make seminal fluid, which joins the sperm through the vas deferens.
D.
The prostate gland is a pyramid-shaped fibromuscular gland about 3.7 cm in diameter and is wrapped around the urethra at the base of the urinary bladder. Tubules from the gland enter the prostatic urethra and add prostatic secretion to the sex cells as they pass through and helps maintain motility.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】在单链表上难以实现的排序方法有( )。
【简答题】在单链表上难以实现的排序方法有希尔排序、【 】和堆排序。
【单选题】心动周期,心室血流充盈主要是由于
A.
血液依赖地心引力而回流
B.
骨骼肌的挤压作用加速静脉回流
C.
心房收缩的挤压作用
D.
心室舒张的抽吸作用
E.
胸内负压促进静脉回流
【简答题】在单链表上难以实现的排序方法有（）、（）和 （）。