采购机构根据招标文件的要求，对所有的标书进行审查和评比的行为称为( )。
A．招标
B．投标
C．决标
D．评标
参考答案：D
内科急腹痛症的特点有
A．一般先发热呕吐后腹痛
B．腹痛部位不固定
C．疼痛程度较轻
D．无明显腹肌紧张
E．呕吐、腹痛同时发生
The old men who gave away lots of money _____ highly of at yesterday's meeting. [ ]
A. spoke
B. spoken
C. was spoken
D. were spoken
