根据《建设工程质量管理条例》的规定，下列建设工程必须实行监理的有______。 A．

罗马最大的广场图拉真广场的轴线( )，做多层纵深布局。

A．交错

B．穿插

C．对称

D．平行

护患关系是一种（）。

A.公共关系

B.人际关系

C.合同关系

D.社交关系

“洋布、洋纱、洋花边、洋袜、洋巾入中国，而女红失业；煤油、洋烛、洋电灯入中国，而东南数省之桕树皆弃为不材；洋铁、洋针、洋钉入中国，而业治者多无事投票闲……华民生计，皆为所夺矣。”这种情况最早出现在

A．鸦片战争后

B．19世纪六七十年代

C．《马关条约》签订后

D．一战结束后

Roger Smith is a retail broker for TNT Securities, a small regional broker firm. As a CFA member, according to the Code of Ethics and Standards of Professional Conduct relating to knowledge of the law, he is most likely required to:（）

A. report violations of the Code of Ethics and Standards of Professional Conduct to appropriate regulatory organization.

B. dissociate from any activity that is believed to be illegal or unethical.

C. report violations of the Code of Ethics and Standards of Professional Conduct to CFA Institute.

截面各种几何性质中，可为零的是（）。

A.静矩

B.惯性矩

C.抗弯截面系数

D.面积