如图所示，煤气管道包括户外和户内两部分，二者之间连接着一只煤气表。工人师傅给每户安装完户内管道后，都要检查一下管道是否漏气。有一种检测装置，在两端开口的透明U型管中装有水，当U型管两端压强相等时，两侧水面相平。检测时，关闭开关，用力向户内管道口Y内吹气，然后迅速将U型管的Y′一端与Y相连接，U型管内水面出现高度差，继续观察U型管中水面的变化（  ）

①近期，青岛某医院因工作人员操作不当导致9人感染乙肝的新闻，可谓石破天惊，大众一片哗然。

②面对今年春装上市即遇冷，而冬装销售也不瘟不火的现状，从侧面印证了当前我国经济发展速度放缓的现状。

③年仅16岁的武亦姝在《中国诗词大会》决赛中长驱直入，斩败北大博士和连胜四场的擂主，获得冠军。

④电影《乘风破浪》上映前，韩寒对主创人员和故事情节讳莫如深，媒体和观众们都无法得知任何消息。

⑤随着出行方式的多样化，旅客出行的舒适度不断上升的同时，每年春运项背相望的场景将渐成过往。

⑥时下社会存在的普遍弊病，在文艺界虽不是样样俱全，但该领域遭受“感染”却是不容置喙的事实。

语法填空

    Green is not always referring to the color. In some cases, it is the term used for environmental____(friend). If you've been expecting to replace your furniture, consider ____(go) green because green furniture offers many benefits. Here are a few tips to get you started on your hunt for the perfect eco-friendly furniture.

    First, green furniture isn't harmful____your health. Also its making process doesn't cause damage to the environment in any way. Besides, by using eco-friendly ____(product), you prevent global warming to some degree in your own way.

    The materials____are used in furniture are what make them green. Materials can be good for the environment ____ because they are renewable resources or they are all ____(nature). A lack of chemicals in furniture also____(mean) it is a better choice for the environment. It may be hard to imagine that a sofa or a table could actually be____green product, but they really can be depending on what they ____(make)of.

    Therefore, when you want to hunt for the perfect green furniture, you should choose the green materials.