NetBIOS名称包含（）各字节
A.32
B.8
C.16
D.64
参考答案：C
留取24小时尿检测尿钾时，尿标本中加入的防腐剂的方法是（）
A.每30ml尿液加1滴
B.每100ml尿液加10ml
C.每50ml尿液加1滴
D.每100ml尿液加5ml
E.每100ml尿液加1滴
He ___________ the volunteer group last year and ___________ many activities since then.
A. took part in…joined B. joined…took part in C. joined…has taken part in
