If you are too ________ of your children, they will never learn to deal with difficulties in life.

下列小数化成分数正确的是()

We are all concerned _______ her safety.

设区域D由曲线围成，则

不属于建设工程项目总投资中建设投资的是()。

领导作风理论是由()创立的。

To understand the sentence, you should analyze its parts ________.

设随机变量Zn～B(n，p)，n=1，2，其中0<p<1，=()

中国共产党的党徽党旗是中国共产党的()。党的各级组织和每一个党员都要维护党徽党旗的尊严。

Very few people understood this contract, ______ was very obscure.