阅读下列材料，回答相关问题．

材料一：据江西省卫生部门2月16日公布的统计数据，2017年1月1日至2月12日，我省报告H₇N₉型禽流感病例28例，死亡7人．2月13日至15日，全省无新增H₇N₉病例．南昌、九江、上饶、赣州等多地活禽交易场所都临时休市了一段时间．

材料二：近年来，各地市中心城区的街头出现了一批共享单车，市民只要扫描车上的二维码就可以使用单车．共享单车的出现，不仅方便了市民的出行，缓解城市交通拥堵，而且节能减排，自己也可以通过骑自行车，起到锻炼身体和愉悦身心的双重效果．

如图所示的电路中，小灯泡L恰能正常发光、若电源电压U保持不变，当开关S闭合时，则(       )．

    Many people travel during the holiday season but do not make sure that their houses and homes ____ (protect). Crimes go up ____ (rapid) during the winter and summer holiday seasons. Here are some things that you should keep in mind when you go on holiday.

    Always give ____ (strange) the feeling that you are at home. Have the snow ____ (clean) off your stairs or out of your driveway during the winter season. You might ask someone to park his/her car in ____ (you) driveway.

    Tell your newspaper deliverer that you are not at home. ____ (have) a pile of newspapers and other mail on your doorsteps tells people that you are not at home, so you could also have a neighbor ____ a relative get your mail every day.

    Fix a timer(定时器) in some of your rooms ____ turns lights on and ____ during different time of the day. Some TVs also come with a timer that you could set to be turned on during certain time. Have motion(运动) sensitive lights outside your house that keep thieves away ____ you are not at home.

下列各句中，划线的成语使用恰当的一项是(　　)