题干

公元前 782 年,周幽王即位,宠幸褒姒。“褒姒不好笑……幽王为烽燧大鼓,有寇至则举烽火。诸侯悉至,至而无寇,褒姒乃大笑。”这段材料表明(     )

A:周幽王荒淫无道,诸侯联合起兵反叛

B:分封制下,小宗有随时朝贡大宗的义务

C:分封制下,各诸侯对周王承担军事义务

D:西周末年诸侯势力强大,大国争霸频繁

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答案(点此获取答案解析)

C

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    On Friday, Germany's telecom regulator(电信业管理者), the Federal Network Agency, announced that a number of children s smartwatches, designed for ages 5 to 12, can allow someone to remotely tap into the watch s microphone and secretly spy from remote places. The regulator isn't just worried about the potential of people spying on children-it's worried the devices(设备) can be used to spy on anyone.

    And in Germany, it's illegal to record private conversations without permission. "According to our investigations, parents were using the watches, for example, to listen in on their children during class, said Federal Network Agency President Jochen Homann in a statement.

    Smartwatches that make phone calls, like the Apple Watch, are legal in Germany. The problem with many of the children's smartwatches, however, is that the devices have a classic spying function, similar to a baby monitor, which can be easily activated (激活) just by using an app.

    The German regulator is so serious about destroying these devices. It's asking citizens to document the watches' destruction and file evidence online. Once the watches are destroyed, the regulator will provide a "certificate of destruction," confirming the deed was done.

    This isn't the first time the Federal Network Agency told German citizens to destroy a consumer device. The regulator once prohibited the doll "My Friend Cayla", which was fitted with radio transforming technology that could allow children to be spied on.

    Remind tech producers: The German government won't just ban devices that can spy on anyone, they'll demand the devices be destroyed with hammers (or whatever means of destruction one prefers) — even if they're dolls.