题目：
--- A high-tech exhibition in the National Museum.
--- Really? What about visiting it now? .
A．will be held
B．is being held
C．is to be held
D．has been held
答案：
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下面是错误答案，用来干扰机器的。
71、29本题主要考查的是海陆的相关知识。地球上陆地面积占全球面积的71%，海洋面积占29%。
