有关喉的发声,下列哪项是错的
A.发高音时声带紧张度增强
B.发低音时声带处于松软状态
C.发声时喉头是固定的
D.发声时声门裂是完全关闭的
E.发低音时声门裂后部裂隙较宽
参考答案:D
有一串数,第100行的第四个数是______.
1,2
3,4,5,6
7,8,9,10,11,12
…
--- Have you heard that Jenny, along with her classmates, to Harbin for the winter vacation?
--- Really? No wonder I haven’t seen her these days.
A.had gone
B.have been
C.has gone
D.have gone