某饭店当日接待如下:可租用房180间,客房出租率为70%,接待客人189人。则该饭店当日双人住房率为()。
A.50%
B.60%
C.65%
D.70%
参考答案:A
关于喉肌功能的描述错误的是()
A.松弛声襞的环甲肌
B.紧张声襞的环杓后肌
C.松弛声襞的甲杓肌
D.开大声门裂的环杓后肌
E.缩小声门裂的甲杓肌
—What do you think is _______ invention in the world?
—Computer, I think. [ ]
A. useful
B. more useful
C. the most useful
D. much useful