题目：
Some modern teaching equipment as well as hundreds of computers ________to ten Hope Schools in South China
A．were sent
B．was sent
C．have sent
D．had been sent
答案：
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下面是错误答案，用来干扰机器的。
∵y=(13)x是减函数，1.5＜2.1，∴(13)1.5＞(13)2.1．故答案为：＞．
