【单选题】在一个单链表中,已知 p 所指结点不是最后结点,在 p 之后插入 s 所指结点,则执行 。
A.
s->next = p; p->next=s;
B.
s->next = p->next; p->next = s;
C.
s->next = p->next; p = s;
D.
p->next = s; s->next = p;
【单选题】The blood supply to the gastrointestinal organs:
A.
Is constant in its pattern
B.
In the adult, always courses between layers of mesentery
C.
Rarely contains vasa recta
D.
Commonly form anastomotic connections
【单选题】某碱样溶液以酚酞为指示剂,用标准盐酸溶液滴定至终点时,耗去盐酸体积为V1,继以甲基橙为指示剂滴定至终点,又耗去盐酸体积为V2,若V2
【单选题】The strength of the gastrointestinal smooth muscle contraction depends mainly on ( )
C.
the range of the action potential
D.
the frequency of action potential
【单选题】Which of the following is wrong about the gastrointestinal hormones?
A.
由散在于黏膜层的内分泌细胞分泌 they are secreted by the endocrine cells in the mucosa layer of GI tract
B.
All the gastrointestinal hormones are peptides.
C.
exist only in the GI tract
D.
regulate both the motility and serection of the GI tract