腺腺瘤临床特点的叙述,错误的是()
A.多为单发
B.园形或椭园形,表面光滑
C.中等硬度,无压痛
D.随吞咽而上下移动
E.均不发生甲亢或恶变
参考答案:E
Come here, Kate. I have ______ nice to show you.
A.something
B.anything
C.nothing
D.everything
电流的符号是()。
A.I
B.U
C.R