题干

下列各句中,加横线的成语使用正确的一项是(     )

A:老人们在这一天或赏菊以陶冶情操,或登高以锻炼体魄,这些活动给他们的桑榆晚景增添了无限乐趣。

B:会议开始时气氛有些沉闷,多亏张教授抛砖引玉的一番话,大家的发言才活跃起来。

C:今天“十一”国庆节,我去北京旅游,竟与五年不见的小学同学在故宫萍水相逢,真是太让人欣喜了。

D:我们在日薄西山之际终于到达目的地,抬头只见前方竟还有一座山峰,朝霞辉映之下,美丽极了。

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A

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    The Internet, social media, and smart phones allow you to learn many things.____However, just like in the real world, not everyone online is your friend. Some may use these tools to send unpleasant messages to you, and some may use your information to do something bad. It's very important to know how to stay safe and have positive experiences online. Here are some tips for you.

    Be careful about friend or follower requests. When you have a friend or follower request, check the person's information first.____Only accept friend or follower requests from people you have met in the real world. Don't chat with people you don't know or trust. This is a good way to keep you safe.

    Review location(定位) services on your phone and other mobile devices.____They may put you in danger because others can find you easily. To make sure of your safety, turn off the "location services" or "locations settings" features on your mobile devices. Also turn off GPS for the camera, chat and other social media apps.

    ____Strong passwords (密码)should have some upper and lower-case letters, numbers and symbols. If you have a strong password, it'll be difficult for others to know it. Also, avoid having the same password for all your social and education accounts (账户). It is really not safe for your accounts.

    ____If someone sends unpleasant messages to you online, find someone you feel safe talking to. For example, you can talk to a parent, a teacher or a trusted adult and ask him to help report and block(屏蔽) the person. Don't try to do the same thing when others do something that hurts your feelings online.

A. Create strong passwords.

B. Try to get help when necessary.

C. Find out if he or she is someone you know.

D. Friend requests can tell a lot of information.

E. Talk to someone you find safe to talk to online.

F. They also allow you to talk with friends online.

G. Location services can tell others where you are.