如何提高招募的有效性
参考答案：(1)吸引足够多的求职者。 (2)选择适宜的招募渠道。 (3)组建一支称职的招募队伍。
The number of people invited _____ fifty, but a number of them _____ absent. [ ]
A. were, was
B. was, were
C. were, was
D. was, was
男，30岁，腹痛、腹泻3个月，临床考虑溃疡性结肠炎。钡灌肠提示"慢性结肠炎"。
如果确诊溃疡性结肠炎。最有诊断意义的病理改变是（）
A.中性粒细胞浸润
B.淋巴细胞浸润
C.上皮样肉芽肿
D.杯状细胞减少
E.隐窝脓肿
