社会工作者的政策影响人角色是指社会工作者能()
A.影响政策
B.决定政策
C.制定政策
D.发布政策
参考答案:D
牙合支托宽度应为磨牙颊舌径的()
A.1/2
B.1/3
C.1/4
D.2/3
E.3/4
________ some sports news in today's newspaper. [ ]
A. Here is
B. Here are
C. There are
D. There isn't