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易吸湿的药品的保管方法为( )。
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A—ambulance B—credit card C—website D—catalogue E—on vacation F—metro G—download H—be clearly marked and priced I—network games J—traffic jams K—magazine cover L—house to let M—IT N—campus life O—sale discount ( )网络游戏 ( )杂志封面
Jill bumped into a young zoologist (动物学家) called Adam Briton who absolutely loved crocodiles. One of the things that (11) him about crocodiles was that as part of their (12) behaviors, they fight with other crocodiles and regularly (13) limbs (肢体). What amazed him was that crocodiles (14) in dirty, bacteria-filled water, and yet they never seem to get infections—their limbs heal (15) Jill bumped into a young zoologist (动物学家) called Adam Briton who absolutely loved crocodiles. One of the things that (11) him about crocodiles was that as part of their (12) behaviors, they fight with other crocodiles and regularly (13) limbs (肢体). What amazed him was that crocodiles (14) in dirty, bacteria-filled water, and yet they never seem to get infections—their limbs heal (15)
A—ambulance B—credit card C—website D—catalogue E—on vacation F—metro G—download H—be clearly marked and priced I—network games J—traffic jams K—magazine cover L—house to let M—IT N—campus life O—sale discount ( )明码标价 ( )信息技术
Why don’t birds get lost on their long flights from one place to another Scientists have puzzled over this question for many years. Now they’re beginning to fill in the blanks. Not long ago, experiments showed that birds rely on the sun to guide them during daylight hours. But what about birds that fly at night Tests with artificial stars have proved that certain night—flying birds are able to follow the stars in their long-distance flights. A dove had spent its lifetime in a cage and had never flown under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The bird’s cage was placed under an artificial star-filled sky. The bird tried to fly in the same direction as that taken by his outdoor cousins. Any change in the position of the artificial stars caused a change in the direction of his flight. But the stars are apparently their principal means of navigation. When the stars are hidden by clouds, they apparently find their way by such landmarks as mountain ranges, coast lines, and river courses. But when it’s too dark to see these, the doves circle helplessly, unable to find their way. By "his outdoor cousins" the author means ______.
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