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【单选题】
下列是不属于中国人口老龄化基本特征的是?A.
老年人规模大、发展快、峰值高。
B.
老年抚养比快速攀升
C.
农村养老任务较轻
D.
老而不健康、失能失智老年人数量巨大
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【简答题】单词拼写： 76. Light , heat, and electricity are different forms of e____________. 77. Eating more vegetable and less fat will greatly b___________ your health. 78. The a_________ size for British schools ...
【简答题】组合体三视图的可见轮廓线用何种线型表示?
【判断题】下面语篇中句(2)是关于insect-eaters如何取得水分的。 (1)Animals in the desert have a problem getting water and keeping it. (2)Insect-eaters get their liquids from their food. (3)Most desert dwellers avoid the drying hea...
A.
正确
B.
错误
【单选题】Animals in the desert have a problem getting water and keeping it. Insect-eaters get their liquids from their food. Most desert dwellers avoid the drying heat as much as possible, spending their time ...
A.
reptiles are harmless during daylight
B.
birds sleep by day and hunt by night
C.
coyotes are vegetarians
D.
insects store water in their bodies
【单选题】Animals in the desert have a problem getting water and keeping it. Insect-eaters get their liquids from their food. Most desert dwellers avoid the drying heat as much as possible, spending their time ...
A.
desert animals live short lives
B.
water cannot be found in the desert
C.
rain never falls on the desert
D.
water is scare and evaporates quickly
【简答题】S________ water heaters are devices that use energy from the sun to heat water.
【单选题】Animals in the desert have a problem getting water and keeping it. Insect-eaters get their liquids from their food. Most desert dwellers avoid the drying heat as much as possible, spending their time ...
A.
desert animals survive without water
B.
desert animals are cold-blooded
C.
animals adapt to their surroundings
D.
heredity does not affect survival
【判断题】下面语篇的句(6)-句(8)是关于reptiles如何保持水分的。 (1)Animals in the desert have a problem getting water and keeping it. (2)Insect-eaters get their liquids from their food. (3)Most desert dwellers avoid the drying hea...
A.
正确
B.
错误
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