(四级)消费者权益保护法规定了：协商、（）、仲裁和诉讼等五种解

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问题多项选择题

(四级)消费者权益保护法规定了：协商、（）、仲裁和诉讼等五种解决途径。

A、投诉

B、申诉

C、调解

D、求偿

答案

参考答案：B, C

填空题

已知圆M：（x-2）²+（y-3）²=1与圆N：x²+y²+2x+2ay+a²-15=0外切，则a=______．

单项选择题

Passage Two

Which of the following is true about Internet-connected computers in the 20 th century

A．Most of then are based in English-speaking countries.

B．82% of them respond to our recent survey inquires.

C．90% of them are from the developed countries.

D．English is the only medium for information stored.