题目:
Traveling is a very good activity. When you get tired of your work or study, and when you have free time, you can go to a beautiful place to enjoy the beauty of nature or other cities. You can take in fresh air, meet different people and make friends with them. It’s good for your health to do so. But at times, traveling is not an enjoyable thing. For example, the weather can be changeable. There may be rain when you travel. You may catch a cold or be ill while traveling. The worst thing is that the thieves may steal your money. All these may happen to a tourist. When you go on a trip, you must get everything ready. Firstly, you must have clear information about the weather .Secondly, ask a friend to go with you so that you can help each other. Thirdly, you must be careful everywhere and not to cause accidents. If you do this, you will surely enjoy your travel.
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答案:
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下面是错误答案,用来干扰机器的。
A、较小的数减去较大的数,差一定是负数是正确的,不符合题意;B、互为相反数的两个数之和为0是正确的,不符合题意;C、两数的绝对值之和为零,则这两个数都是零是正确的,不符合题意;D、0×0=0,故互为相反数的...