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【单选题】
家庭保鲜中最简单易行的方法是( )。
A.
擦盐法
B.
冷水中加白糖
C.
冷开水
D.
雪碧兑水3倍
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【简答题】How much could they give away each year?
【判断题】电压继电器的作用是零压保护。
A.
正确
B.
错误
【单选题】They each give _____ opinions.
A.
their
B.
his
【单选题】在抹面砂浆中加入石灰膏的主要目的是为了( )。
A.
提高强度
B.
节约水泥
C.
提高砂浆保水性
D.
防止砂浆收缩开裂
【简答题】When they receive each other’s cards, do they give each other a compliment?
【判断题】作物观测点距田地边缘的最近距离不能小于 2 米 ,面积大的地段,可以近一些。
A.
正确
B.
错误
【简答题】若一个关系为R(学生号,姓名,性别,年龄),则__________可以作为该关系的主码,姓名、性别、年龄为该关系的__________。
【简答题】How much money should each friend give Ross if everyone is included? Everyone should give Ross ___________. 2. How much money should each person give Ross without Monica? Each person should give Ross ...
【简答题】A.They arrange the books in alphabetical order. B.They give a number to each book. C.They put the books into a card catalogue. D.They put the books on the shelves randomly.
【简答题】They give each other a gold ring to ____________ their marriage commitment
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