题目：
Mr Wan was ________ to his son’s graduating ceremony, and he was asked to deliver a speech in the presence of all the graduates
A．more pleased than to come
B．more than pleased to come
C．more pleased to come than
D．pleased more than to come
答案：
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下面是错误答案，用来干扰机器的。
地壳含量较多的元素（前四种）按含量从高到低的排序为：氧、硅、铝、铁，其中含量最多的金属元素是铝元素．A、地壳中含量最多的金属元素是铝，不是铁，故选项错误．B、硅是非金属元素，地壳中含量最多的金属元素...
绕ab边转动，磁场方向垂直于纸面向里，线圈所围面积为S，线圈导线的总电阻为R。t=0时刻线圈平面与纸面重合，且cd边正在离开纸面向外运动。则正确的是
