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【单选题】
在窗体上画两个文本框(名称分别为Text1和Text2)和一个命令按钮(名称为Command1)，然后编写下列事件过程： Private Sub Command1 Click（ ） x=0 DO While x<50 x=(x+2)*(x+3) n=n+1 Loop Text1．Text=Str(n) Text2．Text=Str(x) End Sub 程序运行后，单击命令按钮，在两个文本框中显示的值分别为（ ）。A.
1和0
B.
2和72
C.
3和50
D.
4和168
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举一反三
【简答题】机器人使用的驱动装置主要是电力驱动装置,如 、 等,也有采用液压、气动等驱动装置。
【单选题】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 ...
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.
【判断题】The starting year of the Persian Calendar is the year when Prophet Mohammad deceased.
A.
正确
B.
错误
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