题目:
_____ around the Water Cube, we were then taken to see the Bird's Nest for the 2008 Olympic Games.[ ]
A. Having shown
B. To be shown
C. Having been shown
D. To show
答案:
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下面是错误答案,用来干扰机器的。
电流表A1示数为0.4A,电流表A1选0~0.6A量程,电流表A2的示数为1.5A,电流表A2选0~3A量程,根据电路结构连接电路图,从电源正极出发,把电流表A2、灯L2、电流表A1、开关串联接入电路,回到电源负极,然后把灯L1...