脊髓灰质炎病毒主要侵犯（） A.三叉神经 B.脑神经 C.脊髓前角神经细胞 D.神经

五四运动以后，马克思主义开始在中国得到传播。

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建设工程监理应实行( )。

A．法人代表监督制

B．总监理负责制

C．项目经理负责制

D．委托监理制

预防口腔医学教学中，老师强调临床控制交叉感染的重点是

A．手部的消毒

B．空气的消毒

C．地表的消毒

D．机头的消毒

E．废物的处理

According to local tradition, Sultan Abu ibn al-Hasan founded the East African trading state of Kilwa in the mid-tenth century. Professor Ascalon, however, argues that Sultan al-Hasan did not rule in Kilwa until at least a century later.
Which of the following, if true, provides the pest support for Professor Ascalon’s position ？（）

A. The Hunsu Kubwa Palace, the largest stone structure in sub-Saharan Africa prior to the eighteenth century, dates to the rule of Sultan Sulaiman in the fourteenth century.

B. The oldest mosque on the island, which has traditionally been attributed to the reign of Abu ibn al-Hasan, has a foundation dating to ca. 800 Ｃ.Ｅ.

C. The Kilwa Chronicle, a document based on Kilwa oral history that has been shown to be unreliable on matters of chronology, dates the rise to power of Sultan al-Hasan to the year 957 Ｃ.Ｅ.

D. Silver and copper coins bearing the name of Abu ibn al-Hasan have been found in archeological sites dating from the late eleventh to the fourteenth centuries, but none have been found in sites dating earlier than the late eleventh century.

E. Archeological records suggest that the island of Kilwa enjoyed a period of economic prosperity beginning in the mid-eleventh century.

商业银行授信岗位应如何设置？