不与十二指肠降部毗邻的是()。
A.肝方叶和胆囊
B.胰头
C.胰管、胆总管
D.右肾门、输尿管
E.横结肠及其系膜
参考答案:A
The basic structure of biological membranes is determined by the lipid bilayer, but their specific functions are carried out largely by proteins. Explain your answer.
在3DSMAX中,复制单个对象最快捷的方法是()
A、按住Shift键移动对象
B、按住Ctrl键移动对象
C、按住Alt键移动对象
D、按住Shift键变换对象