重庆维普《中文科技期刊数据库》中的文献按照《中图法》进行分类和标引,被分为()个专辑和()个专题。
A、10,168
B、9,126
C、8,28
D、8,76
参考答案:C
孝敬父母既是为人的_____________ ,也是中 * * 的_______________ 。
But for their help, we() the program in time.
A. can not finish
B. will not finish
C. had not finished
D. could not have finished