序号注写在指引线附近，序号字高同该装配图中所注尺寸数字的高度相比（）.
A.一样高
B.大一号
C.大两号
D.大三号
参考答案：C
社会工作者在开展社会工作的过程中应该避免下列( )情况。
A．富有爱心
B．富有同情心
C．沉着、冷静地处理问题
D．深刻同情案主，陪他痛哭流涕
—I called you last night, but nobody answered.
—I _______ dinner with my family in the restaurant.[ ]
A. have
B. had
C. have had
D. was having
