Some people associate migration mainly with birds. Birds do travel vast distances, but mammals also migrate. An example is the caribou, reindeer that graze on the grassy slopes of northern Canada. When the weather turns cold, they travel south until spring. Their tracks are so well-worn that they are clearly visible from the air. Another migrating mammal is the Alaska fur seal. These seals breed only in the Pribilot Islands in the Bering Sea. The young are born in June and by September are strong enough to go with their mothers on a journey of over 3,000 miles. Together they swim down the Pacific Coast of North America. The females and young travel as far as southern California. The males do not journey so far. They swim only to the Gulf of Alaska. In the spring, males and females all return to the islands, and there the cycle begins again. Whales are among the grea A. Three Types of Whales B. Birds Migration C. Mammals Also Migrate D. Several Kinds of Migration [判断题]全面质量管理的英文原文为TotAlQuAlityMAnAgement。( )
A.正确 B.错误 [单选题] ( )是菜点质量指标的核心,是中餐菜肴的灵魂。
A. 菜点的滋味 B.菜点的色泽 C.菜点的分量 D.菜点的香味 [单选题] ( )是公路上供各种车辆行驶部分的总称。
A. 路肩 B. 路基 C. 行车道 D. 边坡 [配伍题]属于卵巢上皮性肿瘤的是|属于生殖细胞肿瘤的是|属于转移性肿瘤的是
A. 卵巢成熟性畸胎瘤 B. 库肯勃瘤 C. 卵巢纤维瘤 D. 卵巢颗粒细胞瘤 E. 卵巢浆液性囊腺瘤 [单项选择]执行语句Open "C://Stud.txt" For Input As #2后,系统()。
A. 将内存数据存放在C盘当前文件夹下名为Stud.txt的文件中 B. 将某个磁盘文件的内容写入C盘当前文件夹下名为Stud.txt的文件中 C. 打开C盘当前文件夹下名为Stud.txt的文件,用来读取文件内容 D. 在C盘当前文件夹下建立名为Stud. txt的顺序文件 [判断题]开酥与包酥、破酥工艺相同,只是叫法不同。
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