闸阀根据闸板结构形式可分为（）和（）两大类。

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问题填空题

答案

参考答案：平行式闸板阀、楔式闸板阀

选择题

It wasn’t until the 2010 CCTV Spring Festival Gals（央视春晚） .

A．did the former pop band Little Tiger reunite

B．that the former pop band Little Tiger reunite

C．then did the former pop band Little Tiger reunite

D．when the former pop hand Little Tiger reunited

填空题

心理健康教育的内容主要有三个方面，即______、生活辅导和择业指导。