题目内容
A．costB．spendC．takeD．save
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Strange things happen to time when you travel, because the earth is divided into twenty-four time zones, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days.
If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Traveling west, you set clock back; traveling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you travel by ship across the Pacific, you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar one full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow.
Strange things happen to time when you travel because______.
是利用机械和气流技术将料液或粒料输送、混合，至特制喷枪口送出，使其附着在绝热面成型的一种施工方法。
在我国，从事会计工作的人员，必须按规定取得会计从业资格证书。 ()
关于接地极的制作与安装，下列描述不正确的是()。
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