Look! There ________ some apples in that tree. [ ]
A. is
B. was
C. are
D. were
答案:C
CD-RW是一种()。
A.只读光盘
B.次写多次读光盘
C.数字多功能光盘
D.可擦写光盘
E.以上均是
肺部的正常叩诊音是()
A.鼓音
B.过清音
C.清音
D.浊音
E.实音