主持人要具备较强的口头表达能力,其基本要求是()。
A.口齿清晰
B.语言生动
C.条理清楚
参考答案:A, B, C
The young member made several proposals, none of____ considered practical or acceptable.
A.them
B.which
C.it
D.what
放牧家畜的结构