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【单选题】
阀在液压系统中起调压作用,当阀进口压力等于调整压力时,阀阀口是开启的,阀开始( )。A.
B.
升温
C.
降温
D.
升压
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举一反三
【单选题】“When designs go big, the traditional manufacturer will have new products to make, ...” (Para. 9)
A.
The traditional manufacturer will design new products to compete with the makers whose designs are successful.
B.
The traditional manufacturer will start to make things designed by the makers if their creations become popular.
【简答题】学前儿童社会教育内容选择的原则有:时代性原则、_______________、__________________、内容和目标相一致原则、_______________
【单选题】4 “When designs go big, the traditional manufacturer will have new products to make, ...” (Para. 9)
A.
The traditional manufacturer will start to make things designed by the makers if their creations become popular.
B.
The traditional manufacturer will design new products to compete with the makers whose designs are successful.
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